"Notes to Self on #Mastodon"
I was (still am to a degree) on a similar vibe to @jimniels on a few of Mastodon's weaknesses. Mainly that you lose content if you need to move from an instance (and that's assuming a good move – you in theory can lose more).
https://blog.jim-nielsen.com/2023/notes-to-self-on-mastodon/