Trolls, what happens to them?

Played a competitive game last night with a Deadlock that trolled from round one completely unprovoked. Team is going up B long on bind and he walls us off. Took spike every round he could and just messed around in spawn. Throwing his net on teammates. We all reported and so did the other team. What even happens to people that do this kind of thing. I hope it's a permaban. I really do.