Web3 is being touted as the future of the internet. The vision for this new, blockchain-based web includes cryptocurrencies, NFTs, DAOs, decentralized finance, and more. It offers a read/write/own version of the web, in which users have a financial stake in and more control over the web communities they belong to. Web3 promises to transform the experience of being online as dramatically as PCs and smartphones did. It is not, however, without risk. Some companies have entered the space only to...