Wait ’til the masses hear about this one.
IMHO social networks, centralized or decentralized, are doomed to be exploited (financially, politically) or die in boredom and self-policing. If you can find and maintain a productive niche inside the cr*p , it may work.
In your earlier up-thread comment you mentioned being tarred over certain things, like AI/LLM posts. Are situations like that avoidable in any fashion, like with twit-filters or finding friendlier groups?
Disclaimer: I'm tempted, but have never tried Mastadon, and wondered how some of these things played out, if the good can be found, the bad avoided, etc.
In general the tone went super harsh and cult like. While neo nazis dominate X, the authoritarian left dominates on Mastodon. People call to dispossess „the rich“, „fight capitalism, support my gofundme“, antisemitism and open support of Hamas and other BS.
If you dare to reply and ask for rationality, you will get attacked personally. It‘s a toxic service like Twitter but just the other way around, and way too few insightful or funny content to lure new users. „Run your own server“ is also BS because discoverabilty is very poor.
Mastodon has islands of different culture on both the left and the right that don't interact much save a few of the largest instances. Some of the medium-sized ones vouched by joinmastodon have a lot of far left people. There's also a lot of mastodon forks which have been rebranded and closed off (at least one is far right), which complicates things. If you look at Mastodon blocklists you can get a feel for the boundaries.