I am still paying for an email service that is not able to do something as basic as sending an email.

I was sending an email to an attorney. Upon reviewing the email in the send emails folder, a previous draft of the email was send, not the newest one - this can incur significant financial risk on me.

This is something Proton perfectly well knows their app does (without any mitigations). A message from their customer support:

    Kindly note that we are aware that the Android app does have this issue. It occurs because the draft message was sent before it could be properly saved. If you wait for a few seconds for the draft to be properly saved, the full message will be sent. We sincerely apologize for the inconvenience this has caused.

(And wow it is taking it light, to call it an "inconvenience" when the product you are taking money from incurs financial damage in your customers)

The new beta app was announced in 2021. We write 2023 and the app can still not do something as fundamental as sending an email.

Despite the cry-me-a-river communication (as in the tech debt section of this email: https://proton.me/blog/engineering-team-2021-update) from proton, nothing is happening, and I recommend everybody to stay away from Proton and all its services.

I have been on several projects with tech debt over the past years. But never did we leave the customers hanging over several years, kept charging them, and also damaged them and their reputation.

(And very mature of the official proton account to down-vote criticism)