Earlier quoted context omitted.
Not to be That Guy, since I'm not a shill, but "Bitcoin solves this" — not really today, except for pure cryptocurrency, but I can imagine a future where ownership of our access to these services is controlled by public blockchains ...
Why would that solve anything? Google could still cancel my gmail if I say something politically incorrect, regardless of their database technology. It's not like making my email public would change anything, they are not reluctant to cancel people just because others can see it. If anything, that makes the cancellation all the more effective.
- Decentralized file hosting for all the emails using IPFS instead of Google's servers
- Decentralized login using ENS / Ethereum Name Service instead of Google's login
- a UI on top of your data, plus an outbound server for relaying to/from non-blockchain email accounts
Overall, you end up with portable data thanks to IPFS, and a login through ENS to whatever UI you want to use/pay for.
This seems like a win to me. Haven't seen anything yet that pulls this together but the pieces are there. Maybe someone here wants to prototype it.