He didn't really reward them though, he gave all 3000 of them lifetime vouchers that will be terminated if they do it again. So maybe it'll work, it's more than Microsoft, Sony or the authorities have been doing.
He's giviing them something for doing something bad. He's paying the ransom. He's an idiot, good intentions or not. Maybe these freaks will accidentily use some personal info on these things then bang, no more fucktards ruining things becuase they can't get some.