Okay, Since this is acceptable, I should do it too.
Encountered him in my Silver game, I got mid and he got support. He said right when we got in lobby, "Im mid ok" which is they sign he is going to troll but if im not mid we will lose the game, so I say no, but him and his friend keep saying that hes mid and im support but in like a really tilting way where he types very unintelligently and is from like the EU or something. He starts flaming me and tells me to kill myself and stuff then when we get in game he just takes cs and spams laughing. 3 of our teamates and they enemy teamates also reported him but he didnt receive a ban and we just got into another lobby with him and i had to lose 20 lp because i was forced to dodge. Now he has the satisfaction of making me get tilted and i lose 41 lp that i wont get back since this is the only game that doesn't revert the effects of trolls and cheaters.
Have a good day.