I think the Many More Useful than the of both it
![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
We can't deny that bitcoin can be used for different things NSFW ones and for SFW ones. And even real money we can also use it the same way as bitcoin does.
As long as there are money related on a website for sure many are going to get involved with it. It is all about business.
We can't blame those people who are doing porn business because they know that industry is really big.