This is such a touchy subject. On one hang, the guy is a total freak. But there is nothing illegal about being a freak, until you violate someone elses rights. So you can go on and on and on about how much of a freak you are, and it's ok. Until your freakyness involves someone else.
Legally the guy is fine. From what I gathered, all he's doing is blogging about how he goes to the park, or the public pool, or the mall so he can be around little kids, and probably have little fantasies in his head. But haveing naughty thoughts about someone else, isn't illegal, as long as thats all it is.
If I had my way, he'd be restrained from going near any kids, his website would be shut down, and he'd have to regester on the sex offender registry and be subject to all the penalties/restrictions that go along with that.
BUT
Thats such a slippery slope. There are so many things people find deviant, or foul, or whatever. And you can't just start locking people up for not being your idea of whats ok for someone to be. Yeh he's a admitted pedophile, and as revolting as I find that, until he actually hurts a child, he's not doing anything wrong.