No problem.

Guy posts on a car forum about how he paid $63K in cash for his sports car.

How did he get all this money? By winning it through a gambling site, which as you may guess, turns out to be owned by him.

As he continually denies the spamming, other posters search his personal info and found out that he was convicted for having sex with a 15 year old girl when he was 24. They have his name, address, picture, etc.