Sorry, but I am coming into this discussion a little late, so I haven't read all the replies.

Here is my take -

I am SURE that I have had sex with guys that are HIV+ and either lied or we never talked about it.

Would I have "random" sex with a guy that is HIV+. Maybe. It really depends on the guy. But, in all honesty, if I have anal sex with a guy really depends on the chemistry between us. If it's not there it wont happen.

Would I "date" a guy with HIV? Sure. No question at all. Good guys are that are a match for me are not easy to come by. I have a certain taste in personality. If both of us are mature enough to understand the limits, then I will do it. No questions asked.