Uniqueness in pages

[OrganicSEO]

http://www.google.com/search?q=site:...start=900&sa=N

In order to show you the most relevant results, we have omitted some entries very similar to the 611 already displayed.
If you like, you can repeat the search with the omitted results included.

which means that the pages in this forum is not unique enough from google's perspective.

Checking with http://www.webconfs.com/similar-page-checker.php shows that
http://forums.seroundtable.com/showthread.php?t=807
is 73% percentage similar to
http://forums.seroundtable.com/showthread.php?t=608
Though this tool performs sourcecode string to string comparison, IMO is reliable and 73% similarity is on a higher side.

Solution - is to reduce unnecessary code on page:

<!--
/* vBulletin 3 CSS For Style 'Default Style' (styleid: 1) */
body
{
	background: #ffffff url("http://www.seroundtable.com/images/bg1.gif") repeat-x;
	color: #000000;
	font: 10pt verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
	margin: 5px 10px 10px 10px;
	padding: 0px;
}
a:link
{
	color: #000000;
}
a:visited
{
	color: #000000;
}
a:hover, a:active
{
	color: #FF4400;
}
.page
{
	background: #FFFFFF;
	color: #000000;
}
td, th, p, li
{
	font: 10pt verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.tborder
{
	background: #666666;
	color: #000000;
	border: 1px solid #0B198C;
}
.tcat
{
	background: #666699 url(images/gradients/bg2.gif) repeat-x top left;
	color: #FFFFFF;
	font: bold 10pt verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.tcat a:link
{
	color: #ffffff;
	text-decoration: none;
}
.tcat a:visited
{
	color: #ffffff;
	text-decoration: none;
}
.tcat a:hover, .tcat a:active
{
	color: #FFFF66;
	text-decoration: underline;
}
.thead
{
	background: #000000;
	color: #FFFFFF;
	font: bold 11px tahoma, verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.thead a:link
{
	color: #FFFFFF;
}
.thead a:visited
{
	color: #FFFFFF;
}
.thead a:hover, .thead a:active
{
	color: #FFFF00;
}
.tfoot
{
	background: #000000;
	color: #FFFFFF;
}
.tfoot a:link
{
	color: #FFFFFF;
}
.tfoot a:visited
{
	color: #FFFFFF;
}
.tfoot a:hover, .tfoot a:active
{
	color: #FFFF66;
}
.alt1, .alt1Active
{
	background: #FFFFFF;
	color: #000000;
}
.alt2, .alt2Active
{
	background: #DFE7E7;
	color: #000000;
}
td.inlinemod
{
	background: #FFFFCC;
	color: #000000;
}
.wysiwyg
{
	background: #F5F5FF;
	color: #000000;
	font: 10pt verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
textarea, .bginput
{
	font: 10pt verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.button
{
	font: 11px verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
select
{
	font: 11px verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
option, optgroup
{
	font-size: 11px;
	font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.smallfont
{
	font: 11px verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.time
{
	color: #666686;
}
.navbar
{
	font: 11px verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.highlight
{
	color: #FF0000;
	font-weight: bold;
}
.fjsel
{
	background: #3E5C92;
	color: #E0E0F6;
}
.fjdpth0
{
	background: #F7F7F7;
	color: #000000;
}
.panel
{
	background: #E4E7F5 url(images/gradients/gradient_panel.gif) repeat-x top left;
	color: #000000;
	padding: 10px;
	border: 2px outset;
}
.panelsurround
{
	background: #D1D4E0 url(images/gradients/gradient_panelsurround.gif) repeat-x top left;
	color: #000000;
}
legend
{
	color: #22229C;
	font: 11px tahoma, verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
}
.vbmenu_control
{
	background: #000000;
	color: #FFFFFF;
	font: bold 11px tahoma, verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
	padding: 3px 6px 3px 6px;
	white-space: nowrap;
}
.vbmenu_control a:link
{
	color: #FFFFFF;
	text-decoration: none;
}
.vbmenu_control a:visited
{
	color: #FFFFFF;
	text-decoration: none;
}
.vbmenu_control a:hover, .vbmenu_control a:active
{
	color: #FFFFFF;
	text-decoration: underline;
}
.vbmenu_popup
{
	background: #FFFFFF;
	color: #000000;
	border: 1px solid #0B198C;
}
.vbmenu_option
{
	background: #BBC7CE;
	color: #000000;
	font: 11px verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
	white-space: nowrap;
	cursor: pointer;
}
.vbmenu_option a:link
{
	color: #22229C;
	text-decoration: none;
}
.vbmenu_option a:visited
{
	color: #22229C;
	text-decoration: none;
}
.vbmenu_option a:hover, .vbmenu_option a:active
{
	color: #FFFFFF;
	text-decoration: none;
}
.vbmenu_hilite
{
	background: #8A949E;
	color: #FFFFFF;
	font: 11px verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
	white-space: nowrap;
	cursor: pointer;
}
.vbmenu_hilite a:link
{
	color: #FFFFFF;
	text-decoration: none;
}
.vbmenu_hilite a:visited
{
	color: #FFFFFF;
	text-decoration: none;
}
.vbmenu_hilite a:hover, .vbmenu_hilite a:active
{
	color: #FFFFFF;
	text-decoration: none;
}
/* ***** styling for 'big' usernames on postbit etc. ***** */
.bigusername { font-size: 14pt; }

/* ***** small padding on 'thead' elements ***** */
td.thead, div.thead { padding: 4px; }

/* ***** basic styles for multi-page nav elements */
.pagenav a { text-decoration: none; }
.pagenav td { padding: 2px 4px 2px 4px; }

/* ***** define margin and font-size for elements inside panels ***** */
.fieldset { margin-bottom: 6px; }
.fieldset, .fieldset td, .fieldset p, .fieldset li { font-size: 11px; }

/* ***** don't change the following ***** */
form { display: inline; }
label { cursor: default; }
.normal { font-weight: normal; }
.inlineimg { vertical-align: middle; }
#title {
position: absolute;
top: 0px;
left: 20px;
z-index: 2;}

#mainimage {
position: absolute;
top: 70px;
left: 0px;
width: 247px;
height: 139px;
z-index: 2;
background-image: url("http://www.seroundtable.com/images/roundtable.gif");
background-repeat: no-repeat;}

#mainmenu {
position: absolute;
top: 117px;
width: 600px;
left: 247px;
z-index: 2;}

#mainmenu ul {
padding: 0px;
margin: 0px;
display: inline;}

#mainmenu li {
padding: 0px;
margin: 0px;
float: left;
display: inline;}

#phrase {
position: absolute;
top: 70px;
left: 250px;
width: 350px;
font-family: arial,verdana, sans-serif; 
color: #ffffff;
font-size: 85%;
z-index: 3;}

#mainmenu a {
background-image: url("http://www.seroundtable.com/images/mainmenu.gif");
background-repeat: no-repeat;
text-decoration: none;
font-weight: bold;
font-size: 75%;
color: #1F262A;
width: 82px;
height: 46px;
text-indent: 10px;
line-height: 65px;
display: block;
background-position: 0 0px; }

#mainmenu a:hover {
background-image: url("http://www.seroundtable.com/images/mainmenu.gif");
background-repeat: no-repeat;
color: #9D5524;
background-position: 0 -104px;}

.none {display: none;}
img {border: 0px;}

#left {
position: absolute;
left:0px;
top:209px;
font-size: 85%;
margin-left: 0px;
width:246px;
background-image: url("http://www.seroundtable.com/images/sidebgleft.gif");
background-repeat: repeat-y;}

.leftcontent {
margin-left: 40px;
padding: 5px;
width: 200px; }

.leftcontent a {
color: #000000;
text-decoration: underline;
font-weight: normal;
font-size: 85%; }

.leftcontent a:hover {
color: #9D5524;
text-decoration: underline;
font-weight: normal; }

#left h3 {
font-family: georgia, serif; 
color: #000000; 
padding: 0px;
margin-left: 30px;
margin-bottom: 5px;
text-indent: 30px;
background-image: url("http://www.seroundtable.com/images/subheadleft.gif");
background-repeat: no-repeat;
background-position: left center; 
font-size: 100%;}

#sig {
font-size: 1;
}
.links,A.links,A.links:visited {font-family:tahoma; font-size:11px; color:#FFF; font-weight:bold; text-decoration:none;}
.links A:hover{font-family:tahoma; font-size:11px; color:#FFF; font-weight:bold; text-decoration:underline;}
-->

and

remove all comments

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<div id="posts"><!-- post #4314 -->

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[OrganicSEO]

reduce the page size to its minimum for better results and enough care is needed for meta description tag; which can include first 100 characters from the posts.

[rustybrick]

Or I can wait for Google to get it right?

[SEO Portal]

above what percentage do you think Google will think a page is duplicate content..

[Wit]

This tool...
http://tool.motoricerca.info/similarity-analyzer.phtml
...takes a more advanced approach:

It distinguishes between code and (text) content.

Of course, if people steal content from another site they usually copy the code as well.

Also note that the site: search has is not really an internet USER's search, but rather a SEOs. And Google just loves to scare and/or P.O. us SEOs