In my communities, niche though they are, most people have shifted to masto and have been crossposting to twitter. The replies on masto in general seem more engaged and thoughtful.

Discoverability there is, of course, harder. At least initially, but just like twitter once I see someone making interesting replies, or someone in my follows boosts them, I tend to follow them faster (and drop them faster if their smart reply was a fluke).

I see plenty of AI thought leaders posting on LinkedIn.

It's true that they are still there, but I think loyalty is really soft. Musk seems to make some antagonizing change at least once a month that results in defections, the whole Substack thing being the latest. I follow Rex Chapman who seems to be one of those people that just does not want to have to rebuild his following somewhere else. He just recently signed up at Spoutible.

What’s “mainstream”? Why is English “mainstream” while other languages are not?

Twitter’s second largest market is Japan, with Saudi Arabia ranking fourth, Brazil, Turkey, India, Indonesia, and Mexico all in the top 10[1]. While a lot of people prefer to Tweet in English, I can confirm that Twitter has a healthy amount of content in other languages if you want to go find it.

[1] https://www.newsweek.com/countries-most-people-twitter-socia...