> The only question is how do you stop spammers walking away with their stake and creating another domain? This is why I think it makes sense for an email-by-e

> The only question is how do you stop spammers walking away with their stake and creating another domain? This is why I think it makes sense for an email-by-email basis if you also enforce a deposit and withdrawal delay. It's the simplest solution that I think could work. Not perfectly, but who's willing to spend $100 per email account with a 2-week delay between addresses? Add a public blacklist where you can vote for people as spammers and implement on your email services if you so choose, and I think you have a pretty good system. You may well be right that there's an elegant domain-based system with slashing and consensus but I haven't thought about it long enough to think of one myself! And yes you could do this off of Web3 but then you'd need an escrow account and a centralised party to hold the funds which isn't as decentralised as I was hoping for (at least with Web3 the stake remains in my wallet), but definitely possible! Edit: Maybe you could do it at an account level - then if you get blacklisted you'd have to open a new wallet meaning not only the 2-week delay and $100 cost but an additional network fee. That means it's unsustainable in the longterm.