This might sound like a stupid idea but what about an experience system.
It should be like this, If you have much kills you will get points for every kill.
But if you get kicked or banned you lose points, it has to be turnable on or off.
with experience you open new objects like sunglasses or coats,capes and hats if you have enough.
And with that you could be able to set how much exp you need to enter a server.
Like you begin with 100 exp and if its below the 0 you would not be able to join a server.
Ps:Death doesnt decrease your exp
It should be like this, If you have much kills you will get points for every kill.
But if you get kicked or banned you lose points, it has to be turnable on or off.
with experience you open new objects like sunglasses or coats,capes and hats if you have enough.
And with that you could be able to set how much exp you need to enter a server.
Like you begin with 100 exp and if its below the 0 you would not be able to join a server.
Ps:Death doesnt decrease your exp