> Emails are fine, as they can be anonymous as long as you don't use one of the larger providers
I’ve always struggled with this.
If you use a large provider for your email, the provider can likely de-anonymize you, but the person you give your email address to will struggle.
If you use your own domain, you’ve de-anonymized yourself already.
So I guess you have to use a smaller provider like protonmail? Which gets messy once you start wanting to have lots of email addresses, or to use subaddressing of some sort?
It's those smaller providers I was hinting at. But that's true, some of them do not like us creating multiple accounts (like Protonmail), but others don't mind.
I think using a reliable smaller provider of the latter variaty and donating money to them would make a nice synergy.