I see that you want to protect Protonmail, but if they want to stop being misleading they can just remove the IP log sentence
I would much prefer this, as a Protonmail paying customer.
Tor is an improvement. It's still a limited tool.
I'm a privacy activist and certainly think that a company should be able to not keep logs. If the law in the country they are in (or area, see for example the data retention directive in the EU) we should of course (and I am) work to change those laws.
It should come as no surprise to anyone who is privacy minded and actively seek out privacy focused services that are located within the EU or Switzerland that your IP (or other information) can be requested with a warrant and that a company is required to hand that over.
I get that you think people should already know this, but do you feel they should be punished for not already knowing this, and not reminded by a company that markets itself on protecting its users? Protonmail was forced to get an IP address, but they're not forced to keep the fact that they respond to warrants a big secret.
Not everybody who is an activist is a big techie, or even computer-literate.
(also a paying Protonmail customer)
Of course Protonmail is accessible via Tor. Not that you should need to do that to remain private.
Gmail does all of this for free though, right?
No service is capable of completely hiding IPs and still getting you the data. If you "threat model" includes hiding from Western governments, I'd recommend not using the internet.
But that is not a proton issue that is an issue with our current governments.
"Hey, we respect your needs. However, we have to tell you that you should treat us as a bit of an adversary. We will do what we can as a private company, but ultimately we can be compelled by the government, rogue employee, or if somehow we get hacked. This is the case for any company no matter what they promise or avoid telling you. We do tell you. As our customer, here's what we recommend you do: Use Tor, fund open source, vote, etc."
Interestingly, ProtonMail's privacy policy lists a number of cases in which they may log your IP address permanently (including if you breach their Terms and Conditions). But a request from law enforcement is not one them.
Moreover, I would like to point out that ProtonMail is about encryption of email *content*. It is foolish to expect more from them. They won't protect your identity: law enforcement can know who you are and who you communicate with, but they cannot know the content of your emails (if you recipient uses encryption services as well).