Ive actually thought about this before, a section that only "Forum Sponsors" can see which is a bit more relaxed in "some" ways.

However, I never went ahead with it as I never wanted this forum to turn into a place where people could abuse each other, not that it would be like that but the targeted audience for this website is males aged 20-40 so a separate private section was thought of for blokes to talk blokey things I guess....lol