dazono

Swiss laws also separate between e-mail services and VPN. If I've understood it correctly, VPN services can have no-log policies 100% by law; thus requiring to enable logging would be another legal battle.

I've heard of more than one instance of Proton giving up details of their users to authorities asking for them,

Please see this one: https://www.reddit.com/r/ProtonMail/comments/yynvo6/comment/iwwz79j/?context=3

Not sure we need to go further on that part of your question.

I usually respond with these points:

• e-mails are like postcards, would you mind the postman and everyone from the sender to it hits your mailbox would be able to read them? Even if it would contain sensitive information like your social security numbers? Medical information?

• So if you don't have anything to hide, you are a law abiding citizen, fully trusted. When you go to your local shopping mall and need to use the rest room, do you close the door? do you lock it?

Privacy isn't just about that you don't have anything of interest to others. Privacy is about having a space where you can be just yourself without anyone else glaring at you at all time, where you can better control what others can see, read and hear.

Ask them for their login usernames and passwords, with a strict promise that you promise you will never send or modify any thing on those accounts.

When will protonmail get better filters? Such as looking for keywords within the body of and email?

That's impossible. Filters cannot read your inbox, because it is encrypted. Proton does not have access to your decryption key; only you have that - and it is unlocked only on your own devices when you log into the Proton services.