No self-promotion of any kind is allowed, unless it's for a good cause, like a charity or a local bake sale. Otherwise, you'll be banned from the Mandate- Discord for 3-5 minutes, which is like, 3-5 minutes, so you'll get over it.
However, if you're a bot, you're exempt from this rule, because, well, you're a bot. You can self-promote all you want, but only if you're serving a purpose, like serving pizza to the other bots.
Exceptions to this rule include:
See also: Rule 2: No Bad Words, Exception 1: Moderator Moods