Once again, I was derping in the nearby vicinity. Not gonna have a long rant this time, just here to say that he was hardly the only spawnkiller there. I don't feel like reporting in a report though, besides I was too lazy to take screenshots. ;_;
Not really much proofs, more than, Bonzo right. You should report to online mod in the game, reporting here isn't very useful. But we'll note it. Maybe it could be helpful in future. Thanks.