There are games that have mechanisms like that which directly punish bad behavior with bad outcomes, but the problem is that the problem of online abuse is worst in team games and punishing one member of a team punishes the whole team. What's worse, it becomes a tool with which to troll your teammates, either by sicing it on them or provoking it on yourself.

Unless you're suggesting that game developers start engaging in warlockry, in which case, I am onboard. We haven't tried summoning a devil to solve this problem.