In my personal experience there have not been that many cases. I definitely made mistakes myself, my colleagues usually pick those cases up when I ask them for a review. But I don’t remember that much of them, to be honest.
False positives will always happen, this is just how it is when both machine check and human check are included. We decreased the amounts of false positive drastically from previous years, this is something that I see for sure.
Good thing about false positives - they happen only once per player. Simply put, if someone was falsely banned and then unbanned, if the same case is ever picked up again, we’d be extra careful in investigating it.
And yes, we are only humans, but we genuinely try to reduce the amount of those false positives and are ready for the dialogue when the case landed on a sort of grey area. Luckily, there has not been many of those.