Abuse incoming.
this will be abused to the limit most likely, i remember some games with this option, in the end kicking was done for the lulz and for nothing else, especially in the last few minutes of the game often half of the team was kicked
this is far, far worse than having one player beeing afk
well the question is how many votes will you need to kick someone?
chances there will be enough players kicking just for the lulz are high i think
and THEN the REAL complaining will begin...
also, what just came to my mind, new players with weak runes / gear will also get kicked often then i think, in the hope someone other with better gear/ runes will join...