First thing as a prop hunt staff is gathering evidence if someone is ghosting, i trust biosenic is doing his job good with gathering evidence of people ghosting etc.. i've been in alot of calls with him and he takes his job seriously.. i dont think this is a false warning!
. And unless its changed since my time as staff you could almost never prove someone was ghosting enough to warn them. And I mean you basically need someone to admit that they were ghosting. And even if that has changed since I was staff, a few kills that I was spectating is nowhere near enough proof to warn me still.