Having a hard time understanding a ban in this forum where the thread was locked, please clarify

you say a guy picking someones intent pick and running ghost cleanse throws the griefing detection system, and you say the guy didn't type in pregame lobby so it's obvious griefing,

how is that legitimate? I don't know this guy or care, he probably was griefing, but you sit here and tell us that you can't help us when we're trolled by obvious trolls, then you ban this guy who could have been someone who doesn't speak much english, maybe wanted to play the champ and didn't care that his jungler wanted it(please show me where we ever have to care what someone wants in this game or that someone should care about what we want)(in fact it's been decided by the community that we should not worry about what our teammates do, or that we should be punished for it)

how can you say this was worthy of a ban with no other context, yet so many other cases are not? you give special treatment to people in diamond and up because what? Because there's less of them, and they're more trustworthy? i can tell you that's a crock of shit if you believe that at all.

do you have other cases of this guy doing this? or is every case just decided on based on their rank or what the person reviewing it feels like?

I am inviting you to tell me you had a bunch of reports in a lot of cases against this player, and if you don't have that to seriously reconsider what you're doing because you're catching maybe 1 in a 100 trolls and it's in situations where the player is hurting almost no one, and 50+ death per game inters are playing for years.