Phew... from what I can gather, he's a 40-year old Belgian born as Eric van Lint. He uses around 5,000 aliases, one of them being Matt Stone. He seems to have distributed confidential data about clients... and while he was at it molested some children and committed all 7 sins at least 7 times each.

Here's his picture.

Indeed looks like someone's got a huuuuge problem with that guy. Unfortunate for the "real" Matt Stone, I guess.

The reason it's all over Google is because of the "victim" spamming hundreds of message boards with the same keywords...