I did not have an easy experience on Mastodon. I am happy I did not invest too much energy into it. Is Twitter so bad that people are willing to put up with such a poor user experience on Mastodon?

Mastodon: Now I've Got Two Problems by Gabe Weatherhead (macdrifter.com)
In what can only be called a "double turns-out", Mastodon instances can be changed in ways to not be part of the federated group. So, I guess centralized might be the only way to have a unified communication channel. Within two days I've moved from one Mastodon instance to another. I've noticed that this is somewhat common.