The Forum I Mod has a strike system and a sticky section too. They both work really well so I think you’d be on point adding them here.
The strike system though allows the Mod to choose how many points to give the offending content until that person accrues enough points that they hit the Ban threshold. Then they get a Temp Ban for a set amount of time and can talk to the Mods to get back on as a Probation member which has less point before you get banned. Perm bans are usually discussed among the staff before hand though.
And we used to have Mods who did that, get snarky and then as you put it Zeus everyone else in that mother. lol But the staff started reigning each other in because the community quickly started disappearing because of that. Even with hidden secondary accounts the community noticed the rules seemed not to apply to some members. Called out the staff and people started a mass exodus.