just because someone is gay does give them special insight into whether a site niche will succeed. some of my gay non-webmaster friends have had THE worst site suggestions. actually ALL my non-webmaster friends have awful suggestions for sites *LOL*

i suggest you run your site idea by a few qualified webmasters before investing large amounts of time and/or money into the site. also check the niche against inventory.overture.com by checking it in the search box. this will tell you how many people actively searched for that term last month. if people are looking for your niche, it's a good sign. if they aren't, talk it over here and see what people think.

more people fail than succeed in our line of work. that being said, i hope your site works out, and best of luck to you!