It seems like a flop not in user count but in that I'm not seeing it originate any valuable content.
I've seen several interesting posts from Bluesky referenced elsewhere already, but literally nothing from Threads despite it having had more users for longer.
I think their point is that you see Twitter and Bluesky links shared to sites like hackernews or Reddit (ie the internet aggregators), but not anything from threads
Elon Musk's trans daughter Vivian has been very active on Threads. Maybe she's on BlueSky now too, but I think she started on Threads.
(She's 20 years old, her father is the richest man in the world, and he regularly does interviews saying his child is literally dead to him. Enough drama for an Orson Welles script and a second-tier social media service.)
I've seen several interesting posts from Bluesky referenced elsewhere already, but literally nothing from Threads despite it having had more users for longer.