I find this post very interesting, as well as some of the responses. This is something that i have given quite a bit of thought to over the years and I think it might be useful to point out that fiction written by gay authors is in a very real way gay whether or not it contains a gay theme.
For me being gay is an integral part of my soul that goes well beyond my sexual behavior. I am not at all sure that i see the world the same way as a nongay person. The way gay people express themselves in art, in social dynamics, in politics and in literature, etc. may well be unique. We are not merely straight people who prefer rocky road to vanilla or chocolate.
I for one would rather enjoy reading nongay themed fiction crafted by gay people, because i think it would speak to me more than an analogue written by a nongay person.
Along these lines (or the reverse), I recently went to the kindle store and did a search for gay werewolves (i was in that sort of mood). I found a book that shall remain nameless and the synopisis appealed to me. I bought it and started to read it and well, it wasnt the best read. I had paid no attention to the author. Upon further investigation i learned that the writer was a straight woman writing about gay male werewolves. Now unless the author is a werewolf, I really dont think it's the most expected niche genre for her to write in and i was frankly a bit disappointed.
Maybe im a bit of a seperatist, but i when im reading a book with a gay theme that is written by a nongay person it loses some of its appeal to me.
So... what i am saying is that any work of art or literature that is brought to life by a gay person is gay as far as i am concerned, and to me at least, equally as germane to this site as gay themed material crafted by nongay people.
Sorry if i have offended anyone because, - please be certain that any offense was not my intention