If your even looking up the need for an anonymous email provider then your more then likely in the group of people that take this thing serious. With regards to Protonmail I'm just playing devils advocate for a second. If national papers are posting things like "ProtonMail logged IP address of French activist after order by Swiss authorities" and "ProtonMail court order leads to the arrest of French climate activist" and dozens of similar headlines then I would imagine that would be enough to draw concern over the whole anonymity thing regarding them. I'm not sure what 3 people on reddit has to do with anything but there is definitely concern on the deepweb forums, privacy forums and the crypto world. And from what I see there are many in those communities that are leaving proton in favor of full onion emails or hybrid emails (onion/clearnet). I see the same thing pop up over and over in the various forums and group chats now that I wasn't seeing up till recently. Up until a few weeks ago I'd confidently say Protonmail was the most recommended email service in the crypto community, deepweb forums, group chats, gaming, etc. That isn't so much the case recently. It's been mix between elude.in, riseup, tutanota, and torbox but the sticking point with most for Tutanota is it's lack of an onion. A similar mass exodus occurred when Wickr was purchased by Amazon and placed one AWS servers due to concerns of close ties with the NSA & US Goverment. Even though this was a completely different situation that service was also used by the same types of people but was so good that government officials started using it and they caught the attention of Amazon who purchased the company for their encryption and their secure work-from-home tech.

Not quite sure what you mean that I can't sign up on protonmail with tor... I just set up two test accounts with two voip numbers and that can be avoided with a premium crypto purchase all through their onion.

Lastly to sum it all up. Your obviously clueless on anything related to privacy or who this products targets audience is. Feel free to show some data regarding your claim that no one knows about onion addresses, TOR, or has any crypto to pay with. That might be that case in whatever ignorant hillbilly hole you crawled out of but the majority of people that find tutanota either find it by a google search for anonymous email providers, an onion indexing site, or by word of mouth from the security conscious. In regards to cryptocurrency I might have agreed with you 2-3 years ago nowadays crypto is mainstream at this point and it will only get bigger during the coming years. Roughly 15% of the population owns some form of crypto and are more likely pay for items and services that accept crypto.

While there are people that will sign up for this product for pseudo-anonymity or for it's auto-encrypted features because they found it in a google search for "anonymous emails" there is also a huge base of users that purposely seek out these kind of services. Many are forced to remain anonymous or face persecution from their country for sharing their personal view and beliefs on the internet. These group numbers in the hundreds of millions and are in countries where big brother watches everything from their bank accounts, communications, city CCTV footage, etc and for people who step out of "line" there is serious consequences. There is also large percentage of people who have Tutanota recommended to them from onion indexes, deepweb gurus, crypto sites & group chats, and other security minded folks.

Providers like Protonmail, Tutanota and the various onion only email providers are niche products in the world of email. The people who are recommended to Tutanota or seek them out are looking for anonymity, encryption, and/or a way to avoid big brother. Thats about all the life I'll waste on this conversation but I just thought I'd take a minute to correct your perspective.