I use the fediverse every single day. pleroma-fe is a pleasure to use and it is better than every nostr client. I don't plan to stop using the fediverse. but it kind of sucks. 

instances can block each other for any reason. this practice is so widespread that the fediverse is splintered into neighborhoods with very little overlap. the most censored neighborhood has the most public visibility. a person who is learning the fediverse for the first time is extremely likely to land on a mastodon instance with very heavy-handed moderation. they will not be able to see or interact with someone from a spicy pleroma instance just because their admin thinks everyone who disagrees with him is a neonazi. they pass around lists of "nazi" instances to defederate from some of which have been offline for three years or more and never even did anything wrong. I have even seen fediverse instances defederate over use of the word "stupid" because stupid is an ableist slur.  if you somehow wind up in the less censored neighborhood you will see people use the n word every day just because that's the only place where they can. the fediverse is basically not even all one thing anymore.