I should have trusted my instincts from the start, but I tried to believe it could be genuine. I've seen this type of trolling in other forums before, especially on the Mac forums where it seems at least once a week a newbie joins just to tell us that Macs suck and Windows rules.
Same thing applies here. This was some sort of funny (or sick) social experiment to see how a bunch of gun toters would respond to an openly gay individual. I would say the experiment was actually quite revealing--everyone was very well behaved and open minded.