> In general, the circumstances which would require one to use a tool like > protonmail are not commonly observed in connection with a list like > debian-user.
While protonmail might be used for such situations, in my experience most protonmail users I've seen are just people that are sufficiently technically aware to know that they should stay away from gmail and friends and look for a quality email provider (posteo being another popular provider in that space). So, my own bias would rather tend to expect good behavior (good questions and good answers) from participants posting from protonmail ;-) Stefan