There is no such thing as a backdoor that only lets the good guys in. Together with Tresorit, @threemaapp and Tutanota, we are calling on EU policy makers to rethink anti-encryption proposals that would introduce backdoors in encryption platforms: https://protonmail.com/blog/joint-statement-eu-encryption/
@flvc Thank you for your suggestion! We're focused on building a new version of the Android app right now, and we will put the ProtonMail app on F-Droid after we release it. Stay tuned for updates.
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!