So-called skin changers (which modify what skins you yourself see in-game) are actually considered bannable cheats.
This undersells how bad it was to play a game with people who can see through walls and hear your footsteps from a mile away. No skin is worth that.
I’d say 90% of ours have it enabled.
They used to ban accounts but I don’t think they have (on community servers) since it went F2P.