As long as it's privately conducted between two consenting losers, I say let them have their fun. The responsibility beyond that should lie with the parents, in the case of children, to at least those who make an attempt to see what their kids are doing, like the father in the article. Handle it at the lowest level, that's the way to go. Blizzard isn't anyone's mommy and daddy and shouldn't be expected to act as such, unless it's pertaining to publicly broadcast inappropriate content. If the kids' in their are being told by their real parents to either cut it out, or lose your account, that should suffice. Then, ideally, you only have consenting "adults" who actually want to be in there. Sounds like they're doing the right thing in my book.