About how many do you normally add? I try only to add one or two, not to many as to have more off topic than on the theme of the forum itself.
Well, as the owner of an off topic forum, I only have 1 off topic section. The rest of them have a subject.
On my gaming forum I have one category for off topic discussion that has three forums; one for general chat, one for entertainment (music, movies, tv, etc) and and one for design discussion
I don't have any off topic forum but thinking of having one, its nice to give your users some freedom.
I have six forums on off-topic category. I want my place not to be a fan-site forum only but also a place where members can gather and relax and chat about other things. ^^