Will they extend this to Instagram? Until then (and even after) I'd be suspicious of their intentions. Embrace, Extend, Extinguish.
https://en.m.wikipedia.org/wiki/Embrace,_extend,_and_extingu...
https://en.m.wikipedia.org/wiki/Embrace,_extend,_and_extingu...
Either way their intentions are pretty easy to understand.
ActivityPub integration keeps regulators off their back and allows external content to appear on Threads which they can then monetise alongside ads.