Actually, the banner reads "GA Gay Authors - Quality Gay Fiction". The implication is that this is a site where readers will find both gay fiction and works by gay authors. Lest we quibble over semantics, I should add that there is a need for both to be published and neither need preclude the other. If an established gay author wants to write a story about personal relationships that he feels would entertain and enlighten his audience and not include any gay sex scenes in the story or even identify any of the characters as being gay, he should not be required to seek another outlet for his work. If the work is well done and appeals to the readers, it will stand on its own merits even in the absence of any bedroom romps.
If someone desires detailed descriptions of sexual acts, there are other sites which cater to those needs.
I would expect that, if an author began posting lengthy, straight sex pulp fiction, or anything of no interest to GA's audience, the administration would counsel the author about his offerings.