Its easier to AFK than deal with a bad team
I know this seems like a douchebag move, most likely because it is but the penalty for being AFK is a 5 minute extra que timer that anyone can deal with but the penalty for being stuck with a toxic, trolling team is losing your sanity and tilting hard into your next couple games.
I own alot of skins on my accounts and Im not risking losing them by communicating with a bunch of jackasses.
Anyway point of this post is the punishment for AFK'ing is laughably garbage in comparison to the 10/20 game chat restriction you can get for interacting/calling out some players