Graeme, you have totally missed the point I was making. Frankly, if you were making a point, it totally escaped me as well, so feel free to enlighten me if you see fit to do so.
On the basis of this site being called Gay Authors, you take the position that it includes, or, rather, should include, both male and female gays. That is your assumption only. I have no idea if that was the case or not when this site was first set up. I imagine Myr would be the one to ask. Then you go on to state that, because there are no lesbian authors here, GA implicitedly excludes lesbians. That's just fuzzy thinking on your part. Your reasoning that inclusions define exclusions is essentially faulty.
When I spoke of exclusion in my post, I was speaking of behaviour that is far more insidious. For the sake of argument, let's assume this site was called Gay Male Authors. What if there were authors who wrote about incest? Would they be excluded? Would members criticize them until they left? Would we crap on authors who primarilly wrote about sex? I'm only aware of one definitive exclusion here at GA. In fact Myr pointed that out just recently: members who pretend to be someone they're not, creating security issues. There may well be other legal considerations, I don't know.
GA, in my view, scores high on the inclusion scale. But the threat is there if we start to exclude our own based on personal agendas or preferences.
Conner