Sybil attacks are very difficult to mitigate while maintaining privacy and decentralization. I see a nod to anti-gaming in this proposal, but it does fully address this.

Why did you choose Bitcoin for this? Other blockchains can have significantly lower fees and allow the distribution of application-specific reward or governance tokens.

Had me dubious when it wasn't just a use of zaps. Had me really lost when it brought up ERC-20 tokens, testnet or otherwise.

Shitcoins can rot.