I prefer to measure in fortnightly active users per hogshead.
But if you're a bit less fussy about the exact metric, Pew Research has some data on the topic:
> "A majority of Americans who have used Twitter in the past year report taking a break from the platform during that time, and a quarter say they are not likely to use it a year from now, according to a Pew Research Center survey conducted about five months after billionaire Elon Musk acquired the site." -- https://www.pewresearch.org/short-reads/2023/05/17/majority-...
But if you're a bit less fussy about the exact metric, Pew Research has some data on the topic:
> "A majority of Americans who have used Twitter in the past year report taking a break from the platform during that time, and a quarter say they are not likely to use it a year from now, according to a Pew Research Center survey conducted about five months after billionaire Elon Musk acquired the site." -- https://www.pewresearch.org/short-reads/2023/05/17/majority-...
> "The majority of highly active Twitter users continue to use the site following Musk’s takeover but are posting less frequently on average." -- https://www.pewresearch.org/short-reads/2023/05/17/how-us-ad...