All users are punished accordingly, if you believe a users ban was unfair, and should be more devastating, bring it up with senior staff, they will be able to deem it necessary. Usually though, a user is dealt with due to what the player has done or said, and if it is borderline or edgy, the moderators will contact senior staff on what they think, so the user was probably dealt with according to our rules, but if you disagree it is fine to voice your opinion in a private manor.
PMing, or poking a senior staff member, or maybe mod,is probably the best option if the user was already dealt with.