I'm not so active now. But when I was I tried to get another option lined up in case things went pear shaped. So instead of focussing solely on the prospective meet, I looked at other events and activities, clubs etc. in the location that I could investigate. This helped keep things in balance and perspective.
As for screening and such like. Of course its possible, but usually when you know what to expect. Social dynamics change, particularly with new generations, in order to vary the odds and introduce new possibilities. Its less easy to screen until people have come to terms with any new social changes. We are often seduced by youth, new styles and language. And why not? Its fun.
Its very simple - your just not asking the right single guy
Lol
im a single guy or i swing as one as my patner understands i want to try a few things (well i have a list) befor we get married and have kidds and she is not intersted in joining in but i think people take me as just one of thoes stereo types that you are all on about and have had a few time wasters as well so i get a bit of flack as well.
i send pics i use webcams to prove who i am!
and i would just like to say some of us are serious so give us a chance if we make an effort
I just think its sods law at work. The advertisers do the 'screening' themselves by selecting who they think is right for them.
Inundated by proposals and overwhelmed by piccies, they are in no fit state to make a decision. When they do, they unfortunately reject the ones who would turn up and perform, and select the no shows and non performers.
We'll all have some fun. 
Even better :D 
novice1