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.
I just submitted an issue to Mastodon: https://github.com/tootsuite/mastodon/issues/5843
Be wary of jumping out of the frying pan and into another frying pan.
While I agree, knowing exactly where to put your weight is more than half the problem.