I want to turn on the 'require registration' mode which would prevent people from seeing the forum unless they were members.
The only thing with this however is that it would also prevent search engines from accessing the valuable content. We've now got some very good listings under some good key phrases as a direct result of some lengthy threads.
Where in the code does it perform this check? What I want to do is bypass this checking for specific user agents, ie... googlebot
allowing a search engine to crawl your forum is a no-no?
<edit> Ah, I see what you are saying. I looked at Googles terms. You could make a separate page that everyone has access to that highlights some more popular topics and has a disclaimer like, "to join in the discussion, register now"