Actually filing a report because a fully rp ship is out of his ZOI on intention is valid.
That's why there are ZOI and that's why there's no liberty dreads in border worlds.
Warning a player that he is under threat of a sanction is not posing as admin, it's actually following the guideline about sanctions being the last resort and giving a player a chance to realize his mistakes.
ofcourse, it all falls under category of false rule layering the second he's wrong about something.