I received a ban for "Ninja looting in dungeons" I'm fairly sure it was because I, as a warrior, rolled need on a dagger (https://wowclassicdb.com/wotlk/item/35595) that was a legitimate upgrade for me against a rogue. The rogue was kind of a dick about it and I tried to talk with him afterwards but he just blocked me so I moved on with my life.
I'm fairly sure it was this incident because I don't ninja loot.
I understand that some people do think that rogues deserve all daggers but that's false, and this feels a bit ridiculous.