I don't quite understand why it's a problem for the server to give people more detail on why they were banned. For example, if someone is using anti knockback and the server says they were banned for cheating, then surely that player would already know that they were banned for using anti knockback, so it shouldn't make a difference if the server tells them or not. The point is that if someone was wrongly banned then they would know what to write about in the appeal.