Web3 doesn’t care about privacy
In web3, your wallet ID (used for purchases <i>and</i> proposed for logins too) is an undeletable cookie that tracks you both online and off, and one that <i>anyone</i> can retrieve.<p>This article seems to think that having a super cookie like this will make advertising less bad.  I think it will be the opposite - instead of only Google/Facebook doing it, you're now going to have every single shady operation under the sun now able to use/mine/combine your data however they please with zero controls (and unlike HTTP cookies they'll need exactly zero investment & zero infrastructure to do so, so there is no barrier to entry to start using this data)<p>Web3 is the advertising world's ultimate dream situation.<p>It allows significantly more invasive tracking by tying online and offline, cannot ever be deleted or changed, and the same cookie ID is shared across <i>all</i> aspects of your life (unless you use multiple wallets with one-per-site, but my understanding is that an anathema to web3 concepts about data ownership)