Mike here are some issues I would take into consideration:
1. You have some DNS problems:
DNS Stuff: DNS tools, DNS hosting tests, WHOIS, traceroute, ping, and other network and domain name tools.
2. The keywords relevancy to page content is 42%, which is poor. As you sure know that can trigger spam filters.
3. Repetition of keywords in your description and keywords meta tags. As you sure know, such stuff can trigger filters too.
4. The words sex and sexy are found in your content. Could it be that they possibly trigger adult filters? Did you probably consider using the ICRA meta tag?
5. I checked your HTTP headers and I got this:
HTTP/1.1 200 OK =>
Date => Sat, 30 Jun 2007 23:32:41 GMT
Server => Apache/2.0.59 (CentOS)
X-Powered-By => PHP/5.1.6
Connection => close
Content-Type => text/html; charset=ISO-8859-15
You have in your headers these meta tags though:
Code:
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="-1" />
<meta http-equiv="Cache-Control" content="no-cache" />
If I was you, I would add that stuff in your .htaccess file:
Code:
<FilesMatch "\.(html|htm|js|css|php)$">
Header set Cache-Control: "private, pre-check=0, post-check=0, max-age=0"
Header set Expires: 0
Header set Pragma: no-cache
</Files>
To see what I mean test your forum and then my seoworkers site to have a better picture what I am about with this tool:
HTTP / HTTPS Header Check
Also you might would consider adding at the very top of you pages this piece of PHP:
Code:
<?php
$this_mtime = filemtime($this_page);
header('Expires: Sun, 19 Aug 1962 08:00:00 GMT');
header("Last-Modified: ". gmdate("D, d M Y H:i:s") . " GMT", true, 200);
?>
and then add in your .htaccess file the following rules:
Code:
ServerSignature Off
FileETag None
Header unset ETag
RewriteRule .* - [E=HTTP_IF_MODIFIED_SINCE:%{HTTP:If-Modified-Since}]
RewriteRule .* - [E=HTTP_IF_NONE_MATCH:%{HTTP:If-None-Match}]
I do not want to say that all above will solve your problem.
Though if they don't, they will sure make your site more spam-filter-proof and search engine friendlier.
You and the search engines will save a hell a lot of brandwidth.