Topic on All The Tropes talk:How to Get a Rule Changed
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You want to be seriously careful about your mood when going about addressing particular rules. I've seen things get royally volatile over where users have to promise not to do a particular thing to be allowed to resume editing. Some users have begged to be banned outright because they feel they're being made to apologize and promise never again to do what they know full damn well they're not going to be able to avoid doing.