Well done on the mildly confusing post. For people that come straight to the comments – Threads was also what Instagram called a standalone messaging app that they introduced in 2019 and never took off. They shut it down at the end of 2021, which is what this article references. Apparently they've re-designed it a bit (or started over from scratch) to turn it into a Twitter competitor now that Twitter is a bit... tur…
I’d say the general public don’t know or care about the failed version but will find it easy to try the new one. This is probably the biggest threat to Bluesky gaining tracktion. At least in the medium term.
The name is pretty good too. Instantly conveys it’s purpose.