Well having lurked around several photography forums, dpreview in particular, I found the majority of posters to be very juvenile. Almost every thread that is in anyway critical, even if talking about a legitimate problem turns into troll accusations, rude remarks and flames.

That why I find the Rob Galbraith forums such a breath of fresh air. A large majority of the posters are professionals or very experienced photographers who behave as such. People actually have good responses to questions and if somebody brings up a problem they are not made fun but are helped. The Canon forum is actually frequented by Check Westfall, Director of Canon Technical Information Dept., which I am really impressed by.

I'm not sure if I ever posted there but I'll make sure I check that out.

Also, talking about bad photography forums --> DeviantART