Hello, I have played the game against player Tsuki (battlenet:://starcraft/profile/2/17840753754798817280) and the game ended in Tie despite no vote. He lost the game and left it without losing the MMR. He has multiple games in his match history that resulted in tie rather than lose.
Game link: battlenet:://starcraft/map/2/249438
Reddit post from 10 months ago against the same player: https://www.reddit.com/r/starcraft/comments/16731ad/tie_game_hackexploit/