I don’t think you can rely on volunteer labor and donations to keep things running indefinitely.
Doesn’t that imply that it will not work on the long term?
Or you think groups of volunteer will form up and maintain an instance for a while and then go down, and another group will pick up?
I’m afraid we may run out of people able to do that after they all get burned out like ee’s.
I take the expression more as a warning to control it so it does not impact my mental health too much. Getting (properly) informed is good, but if I get so depressed that I can’t act positively on the system anymore or I make it worse for me and others, then it becomes counter-productive.