Say a user makes an inappropriate post in your subreddit. Not a major rule-breaking post, but one that is right on the edge, that you have told users repeatedly is inappropriate and shouldn't be posted.

So you remove it, and move on.

Two hours later, said user messages you directly. Not via modmail to your moderation team, but YOU, directly, complaining about their post being removed.

Standard practice is to warn them, explain (again) why the post was removed,and move on, right?

What if then, the user messages you AGAIN, still whining about their removed post? Block and ban? Just block and move on? Set their eyebrows on fire?

What do you do in a situation like this?