is this true.

so i just finished a ranked game where our mid went on a feeding rampage. he was mad because jung took two minions and began to feed. from the start he was constantly saying the 2 ppl on this team will screw this up for all of us, i am in my series and i needed on more win to be promoted. i figure justice will prevail but then he gets to talking at the end of the game, and he explains that riot could never really kick him out of this game.

does Joe the hobo speack the truth:

is it true what he says, can u really stop him from being this way. if u kick his account he can just get a new one. if u target his IP address can he just switch and continue. if all this if possible one measures can we ensure that guys like this are never playing lol for do u stop that. any suggestions maybe we can help riot out with all these rotten ppl who rather screw up a nice game for no ones gain.