For the same reason that people that were Black rode in the back of the bus. Because they needed to for their livelihood.

I run a gay adult website review site. I can't cut out a whole class of websites just because I don't like how the website markets its websites to affiliates. If they're giving their gay websites second billing and making them a low priority when competing for staff time, it's all the more reason why I need to be listing and reviewing their websites.

There are plenty of websites (Banana Guide, for example) that only review websites they consider exceptional. We like to balance the good with the bad, as there are plenty of people that have legitimate questions when deciding whether to join those sites or not.

--Aaron