Thanks! Just what I was looking for although I did modify it a bit.
I wanted to be able to Unfilter the thread as well so I added a new vbphrase to the postbit: varname: unfilter_posts_by_x text: Unfilter Posts By {1}
and added this code to the postbit/postbit legacy:
Code:
<if condition="$post['userid']">
<tr><td class="vbmenu_option"><a href="showthread.php?$session[sessionurl]t=$thread[threadid]"><phrase 1="$post[username]">$vbphrase[unfilter_posts_by_x]</phrase></a></td></tr>
</if>