I've recently had a situation where I came to some discord askingon newbie channel about tags to let curators know about my content and been told off by moderator that 'it is community here, how dare you come here asking for help without even saying "hello" - it shows how self centered you are'😁
And it happened in "community" which claims it is trying to help onboard new users, come on.
As insignificant it may be I've removed my delegation to them and I am not gonna interact with them in the future, but nah I am too insignificant to go on crusade ;)
I find that in those discords, people tend to get some kind of sense of power and then, feel that they have authority. People expect others to act how they want them to act, regardless of whether it is a common thing or not. This is human nature perhaps.