Fair point, but exporting email? These aren't crazy ideas from one person's wishlist. These are actual features that should be standard for any company providing an email service.

Exporting e-mails was one of the most requested features as far as I remember (https://protonmail.com/support/knowledge-base/export-import-...) and I can understand people getting angry about this. I think Protonmail will have to move a bit faster on this now as holding your customer data "hostage" will no longer be an acceptable practice starting from next year (May 25) due to EU GDPR. So if they want to keep selling to EU customers they will have to implement a mechanism to allow people to get their data out of their system in an automated way.

And honestly, e-mail is not only about communication but also about archiving of data, and what good is an archive if you can't even get the data out of it when you need it? I've been a Protonmail premium subscriber and I would have loved to stay on their service, but the fact of not being able to get my e-mails out of there in case I needed them made it totally unsuitable as a business e-mail account.