rfc 1459: As an owner of a channel, a channel operator is not required to have reasons for their actions, although if their actions are generally antisocial or otherwise abusive, it might be reasonable [...] for the users just leave and go elsewhere and form their own channel.
I'd like the Revised6 Report on the Algorithmic Language BBCode to be published as an RFC too, but I'm waiting for it to be RFC 9001, the first RFC that is over 9000.