Earlier quoted context omitted.
I use facebook for keeping track of events. If someone would just make a good replacement for that (that people would use) I wouldn't attribute much utility to facebook.
Do something about it. Every little thing matters. I just submitted an issue to Mastodon: https://github.com/tootsuite/mastodon/issues/5843
While I agree, knowing exactly where to put your weight is more than half the problem.