Earlier quoted context omitted.
One of the first sentence on their website is "By default, we do not keep any IP logs". If as soon as police show up (Which is almost the only case that people would want their IP hidden) they give IP logs, it is clearly false advertising. The fact that only the anonymous feature is important to you will not change the fact that they do the opposite of what they advertise regarding IP logs
So also a proton customer here. "By default we do not keep any IP logs" and this case does not seem like the default? Seems like they were required to by law to log and turn over this specific IP? (Of course I haven't seen the actual case but I would assume that meant a warrant.)
(also a paying Protonmail customer)