The funny part is the guy was in chat with me and a few others just a few nights ago! He seemed totally normal. Said he was right around my age too. Why all of a sudden do I feel dirty?
Try not to blame or fault yourself for talking to a character like this. Really, if you were talking to him there is no way you would know just from seeing him in chat. We caught him and banned him quite quickly, but we watch for such things and it's one of the many things that are going on behind the scenes to keep everyone here safe.
We just thought this time we need to make an announcement because he was here in the past. I told him then that if he returned we would hand the case over to the BoD with recommendations to file official complaints, and I warned him not to test our resolve. He decided to go for it anyway, so now we are following through.