Idk, I really have a hard time believing people just getting randomly banned for boosting. If you are smart and add some safety layers: e.g. vpn, not playing completely different role champs - but even with guy was main jgl/top and only fed and I played adc as he wanted me to play adc and suddenly only won with good kda's and noone gives a **** - how can they even prove it? On the accounts I own myself I play from different locations as well, university, my home, gf home, friends houses - theres no way they can prove you are boosting or being boosted unless you are really stupid and change country ip every days or whatever