I'm not going to lie, the interest-based channels on Discord/Xitter/whatever other centralized-slop services are usually a lot better than this side of fedi. There are plenty of people who get expelled from these services regularly and there's a culture of ban-dodging that has emerged.
I feel like the fedi/xmpp/matrix vs Xitter/Discord debate is just a reiterate of the Windows vs Linux debate all over again. Appeals to the technical advantages of fedi/linux just aren't going to measure up to the network effect in the mind of anybody without a bachelors in computer science. There will be some exceptions, but not many.