Sex Offenders Post Online Profiles
And while this is creepy in the least, there's nothing illegal about it. As of now, there are no laws against sex offenders advertising themselves in teen cyber-hangouts.
So, this is just one more reason why parents can't be too careful these days. With 50,000 sexual predators going online at any given time, it's hard to keep up with them, let alone catch them in the act of preying upon children.
Parental control software, like Awareness Tech's WebWatcher, is still the only way you can really know who is approaching your child while they are surfing the net.