I've been saying this for months now. Mastodon (and the Fediverse in general) is a failed idea. It may not be visible now, but it will be in a few years down the line.

The main problem is that it makes no sense. The web is already decentralized. The solution is many centralized forums with their own culture, idosincracies, quirks, not one huge soulless """decentralized""" network within a decentralized network.