My government already knows all of my kinks, I include a list of all the porn I watched each year with my tax return. They don't ask for that, but I provide it anyway.

I prefer weak enforcement every time. It's effective for kids who would follow the law anyway, and it doesn't push the kids to use more covert means if they wouldn't follow the law anyway. The latter group is therefore much easier to monitor using standard tools, and good parents with deviant children can use that effectively to help solve their problems before they become more serious.