So about a few minutes ago I flew over EGLL in a A-10, I was at about 400ft AGL(I know that’s too low). There wasn’t any ATC there, but suddenly a message popped up saying ‘reported by user, ghosted’. Can’t you only get ghosted by ATC? I don’t understand! Is this normal or not? If this is not, can I perhaps get un-ghosted?
Contact the user via PM
It’s easily possible that there was a mod watching the airport and they ghosted you. If you were 400AGL buzzing an airport that is to be expected.
You can check to see who it was in your logbook. It’ll give you a name, who will be informed that they need to PM you.
If you are flying that low, over a crowded airport with aircrafts taking off/landing (like your screenshot show) - it is very likely you were reported by a user who has that ability (there are a selected group of users who can do that, in an effort to keep the server as professional as possible).