"Threads’ #DailyActiveUser count is down 82% from launch as of July 31, according to Sensor Tower, with just eight million users accessing the app each day.
[...]
Threads’ user count peaked at roughly 49 million on July 7, the day after launch, and fell steadily to just over 11 million by July 29, said David Carr from Similarweb."
Just this week Mastodon added over 200,000 users, and now has over 11.5 million accounts on thousands of instances. We continue to roll along at more than 1000 new accounts per hour. The new hot topic "distributed Twitter alternative" has about 50,000 users on its one and only instance. Not saying they can't achieve scale, but they are not even close yet.