I would design a system that lets players play. And then I would design an identity system that reduces complete anonymity and records all the action of the game. Nobody wants to play with a cheater and a cheater will be on record.
[I like this idea a lot. It plays into my sense of simplicity and the natural world. I’ve repeatedly used this pattern in my life, writing music for the players rather than the other way around. In the end, rules must be embraced as a willful limitation and ultimately cannot be enforced.]