Technology

It such a large network and great at blasting information out. Lots of youtuber/livestreamers still have to eXcrete on x or less they loose their audience. And it's not just video, writers also depends on the big ole X megaphone to aunuce book releases, beta reader applications etc etc.

Honestly furry artists are probably the freest from X since they have so many of their own social media sites.

You X following even is part of the reason for publishers to pick up your book.

Add to that some police departments actually use to send amber alerts.

You just have the world's largest public megaphone in an attention based economy. People can't leave for anything smaller.

critical mass probably

It's becoming like Facebook, which is were people's parents, uncles and aunts and even grandparents (as well as technically inept organisations) are, but you yourself either moved on or are too young to have ever wanted to be there ("because nobody my age is there"), only whilst Facebook is merelly a Propaganda outlet for the Far Right, Twitter is openly Nazi.

1. Non-Westerner that never have or realized alternative platform exist.
2. Artist that dependant on mainstream social media reach. (some artists already have 100K+ followers there, fedi also have limited reach due to instance blocking, e.g. you're on Mastodon.art and want to reach Japanese audience (mainly misskey.io, but t was defederated on most of Western instance.)
3. People with social network bubble outside Westernsphere, they only have exclusively local feed on their Twitter.
4. People outside Westernsphere that already tried fediverse, but moving back as fediverse is still Western-centric or does not have their own community on feidverse.
5. Community that does not have monetary power to invest on their own fedi instance.