I think you might have had a stroke there buddy
GMs that don't play the game as in GMs that aren't actively playing on the server, and will be fair to everyone
That's how it works on every game
What I was referring to is situations where people who are GMs have no experience in a game, we've all experienced or at least heard stories about incompetent GMs who read a ticket and clearly have no idea what you're talking about because they never played the game they're moderating themself.
Yeah having GMs from the playerbase will create some level of bias, but it's really easy to determine if a GM is abusing their power using logs and requiring explanations for the disciplinary actions they take. People that actually play and care about the server are also more likely to take their role more seriously as far as aiding in server health and can be paid using credits which would make things a lot easier on the people running the server.