Edison Research has Twitter losing nearly a third of its American users between Jan 2023 and Jan 2024 (mostly in the late summer when the Twitter to X name change happened...hypothesis is a number of the more casual users literally didn't recognize the X app on their phone).
The pattern seems to be that the more casual users are drifting away while more hardcore posters continue to post steadily but with fewer and fewer people hearing what they're saying. Generally less impactful vs its heyday.
Slowly but surely a number of people who are big account holders with 500k followers will realize that only 300k of those are people who ever actually use Twitter anymore and their microphone is way weaker than they think it is.
Hopefully out to breathe some fresh air.