I joined a forum - Sydney Bi-Men's Forum - Why do blokes keep propositioning me?

It often happens when people go for a social gathering of the most innocent of intentions that other people use it as an excuse for a 'meat market' Personally I find it a little irritating, but I can understand why people do it! Having said that it is the persistantly sleazy ones that go on and on and on long after you have made the point you aren't interested, their the ones to watch out for.....