I think it's some sort of stereotyping that is going on. For example Google won't display ads on a site that has adult material - presumably they think people that enjoy porn aren't interested in anything else, like clothes, holidays etc… Ebay apparently refuse to affiliate with any gay site, whether general gay interest or otherwise (unless they recently changed this policy) - they must think gay people don't want to buy things. Both are beyond stupid in this respect. And with these generic porn ads, presumably they think porn lovers like all porn or they just play it random offending gay people with straight ads and straight people with gay ads, instead of tailoring the ads to the site which would benefit everyone.
