I've only been actively gay since just before I left for Japan, and only errr, “meeting” guys? since I came back. I'm surprisingly not a prude so long as it's safe(r), and the other party isn't icky :P But really, random sex doesn't work out for me. I get too conscious about myself and my disability. Getting subconscious means I get distracted, which means no more erection, and the whole thing spirals down from there. I'm sure everyone has their own self-conscious moments, and this is not a disability-related thing, so hence why I'm impressed with the sluts out there.
Now, sure, it takes less effort to be on the receiving end, but it still takes a good amount of courage to do so, knowing the increased risk – in terms of disease/pregnancy, and psychological. But those who are able to do so, and stay sane/aren't abused, etc, impress me – even if just slightly because I simply can't turn myself off that way.