Permanent ban, worth?

Hi, so I got permanently banned after the 3 chances I got to reform. Last week I was glad I could play again after my 2 week suspension, and I knew not to be a d*ck. So the games after my ban I tried to focus on my games and not to respond to players who verbally abuse me. So the chatlogs of the 3 games which lead to my permanent suspension off league are to Riot extremely toxic. I always tell teammates they're doing good, and stop my teammates from shouting at each other, and welp. Now I'm permanently banned for being extremely toxic. I never called anyone bad, wished death upon them.. etc But why I opened this discussion is, I would love to know what could possibly be seen as extreme toxicity(?) which lead to my permanent suspension.