Reminds me how in one online multiplayer game developers decided to offload the decision of "who's the winner of the match" to client machines. Because there were some problems on server side and they couldn't do it reliably there.

Developers said this voting system worked surprisingly well. Theoretically if there were >50 percent of malicious game clients they could all vote for a wrong player but this was hard to accomplish, it would require a coordination of randomly-matched players.

(eventually developers did fix server-side code and removed this system)