It's only meant as ad-killing, not as censorship. The fact that there are some X-rated sites on the list (because they serve up X-rated ads) is a side benefit, and its main purpose is not to block porn.

There's no way for me to allow individual users to opt-in or opt-out of the block, due to the way I had to implement it on the proxy server (discussed in another thread).

I'm not trying to hide sites from users, i.e., I'm not trying to dictate what they can and can't see. I'm simply trying to remove ads.