Nobody except them is entitled to shit.
I guess the difference here is between two people that have been told that their behavior is off.
For example (completely unrelated, too), when Prosper was told that his behavior was off, he continued with his behavior dialing it up to 11, and never even thinking (as far as we know) to change it.
Meanwhile, when I (and maybe others too) pointed out to Theodora that she has less than 10 posts in the RPG sections so far, she started posting in the RPG sections more.
So, bottom line the issue is not the past, or the character of the people involved. It is the attitude towards the future and the respect towards the idea of why we're here.
But, yes... on the note that "this is our establishment", as per stipulated in the rules, no one can object if someone gets kicked for literally no reason. Funny, however, how so few get kicked when they're a reasonable person. Quite fascinating, actually.