Tagging - an ugly pointless form of graffiti is popular for similar reasons. It's easy to do, and more tags == more credit among a small group of peers.
It's a good thing that people want to deface websites rather than hunker down and learn the long game. We'd be in real trouble if all the people doing minor stuff turned to major cyber crime.
 "cyber" feels so old to me. Neuromancer was written in 1984.