They still don‘t log your IP and advocate to not even give them your data, though. If you give them your credit card number and then use their services to sell illegal substances and if authorities of your country then find your e-mail address and contact Proton about it then their hands are pretty much tied. If you use one of their offered anonymous ways to pay for their services then there is nothing they can give authorities. Ultimately it‘s your job to take care of your identity and Proton offers ways to protect it.