So what about other categories? Personally, I think a forum with a title such as "Relationships" or "Love" would be a lot better than "Sex", as it can attract the wrong kinds of people.
Some project-based forums could be made, kind of like the hosted forums, but there to let people post about their own public projects for everyone to help. Maybe someone wants to make a 3D city, or a mini game for instance, then he or she might want some help on it.
"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram