The advice to use @gmail.com vs. a custom domain name seems kind of questionable if you use a reasonably secure registrar. Not GoDaddy. Using an unusual/unkno

The advice to use @gmail.com vs. a custom domain name seems kind of questionable if you use a reasonably secure registrar. Not GoDaddy. Using an unusual/unknown address for account validation mails (maybe with forwarding of other communications) probably would make sense, though. And/or sites coming up with a better account-recovery procedure, perhaps outsourced to a startup. There's probably a market for a super-secure email address for account login mails, but that isn't a free gmail account.