Forum Moderators: open
To do this I view the profile of the person then check the threads where they posted. The problem is in long threads its hard to find their posts.
My suggestion is maybe listing the post numbers where their post appears or even better a direct link.
or even more crazy a GoogleGuy RSS feed ;-)
Something along the lines of:
20050525-130159-207.123.123.1-9999-8765
for May 25, 2005, 1:01:59pm, IP 207.123.123.1, Forum #9999, thread # 8765
Then embed <a name="20050525-130159-207.123.123.1-9999-7890"></A> anchors in forum / thread pages...