You know how on reddit, and many other platforms, subcommunities within those platforms have rules? Like some subreddits had a no image macros rule? If you posted an image macro to one of those subs, and get warned or your post is actioned, that entirely on you and not on the community. it doesn’t matter if you’re “part” of that community, you should abide by the rules of that community when you post in it.
Of course, you’re welcome to wilfully ignore or go against the rules of the communities you post in, but aside from being just a generally dick move, you also put yourself in the sights of the moderation of that community.
Bitch, I’m not even part of your “community”! You chose to federate with the rest of us!
And you chose to post in this community - abide by the rules or the moderators have every right to tell you you’re breaking the rules, or take action if it continues.
I think, based on the attitude you’ve displayed here, I can see why you were not deemed a good fit for the community when you applied.