I definitely agree on news organizations doing this (and even government departments), but the problem with Mozilla doing it is they were running a server any of us could join - if they don’t have the resources to run it for themselves, they definitely shouldn’t be doing it for others to join.
Isn’t that exactly why you pick up your account and move servers?
Again, they were also running a server we could join - I don’t know why they thought they had the resources to handle that.