Every Troll / Inter / Griefer I come across continues to play
Title.
I (in extreme cases) will sometimes note the summoner names of people who hard int or otherwise ruin games I am in. Now I do not do this if someone simply feeds. Only if they feed and say things in chat that clearly indicate malicious intent. I will report them after the game and check up maybe a day later, or two days later.
Never once have I seen a pattern of play that indicates any type of suspension. I also do not get the Feedback Reports that Riot once gave out. Between this account and one other, this probably sums up to 5 or 6 individuals. Hell, I once even got chat restricted for lashing out at someone while they were inting and taking farm from my lane.
Riot isn't punishing trolls. Only people who say rude things in the blockable square. Change my mind.