> Mint a fixed-cost non-transferrable NFT to an address, with ownership limit of 1 per address. - Use SIWE (sign-in with Ethereum) to verify ownership of addres

> Mint a fixed-cost non-transferrable NFT to an address, with ownership limit of 1 per address. - Use SIWE (sign-in with Ethereum) to verify ownership of address & therefore NFT. - If malicious behaviour is detected, mark the NFT as belonging to a malicious actor at the server's end & block the account. - Require non-malicious-marked NFTs in order to use the site/app. In the real world that's called a paywall. Just requires users have an email address (wallet address) and proof of payment (NFT). Web3 contributes nothing but a different lingo for the existing concepts, yet has all of the same problems: nobody likes paywalls.