I got hit with the leaver Buster for ALT -F4'ing a 15 Minute No surrender. Question Regarding.

Will my Account get suspended if I ALT - F4 future games at 15 minutes. The score was 13 to 1, and the guy that cost us the game voted No to BM. It just seems alot better than AFK Split pushing and getting ripped a new one. I do enjoy trying to play out hard games. But not games that are that clearly over, with people just trolling the loss. I reported the trolls with detailed explanations, it just seems unjust idk. For reference: Jungle and AD Ran it down mid.