I understand Alex’s frustration but may I offer a counterbalancing view?
Since I have been controlling on the advanced server, I have been paying more attention to pilot’s behaviours vs ATC commands (obviously…), and I’d like to say that most of them are really doing well. Of course, sometimes pilots require odd things like VFR in a jet at FL180 or don’t know the difference between left and right, and this can be irritating, but in the end the experience is mostly pleasant.
As for ghosting: the balance is really hard to find, but I’d rather not ghost anybody at all, even if that means I have to cope with someone else’s erratic behaviour (typically a pilot doing a right pattern when everybody has turned left as requested, or a pilot seemingly thinking that “hold short” means “line up and wait”). Unless there is a “life threatening” situation or the pilot is a repeat offender, I usually try to be patient and give them a chance.
In a nutshell @LSZH34 : I completely understand your frustration, but the good news is that pilots do improve once they get on the advanced server (for instance after a while they stop requesting frequency change from ground to tower once they realise that nobody else is doing it, or they stop reporting each leg of their pattern etc.), unfortunately this is not an overnight change and we need to be patient sometimes :)