I will not be on Threads. I was completely addicted to Twitter, scrolling hours away each day until I left it in December when Musk went full asshole to the journalists around the ElonJet account reporting.
But I excised Facebook out of my life years ago, and I used the hosts file on my computer to block all the tracking and ad serving shit Meta does, and it runs to 400+ lines of domains and servers that are literally everywhere tracking everything you do.
Twitter had none of that infrastructure, and as far as I could tell, didn't do any tracking outside of the app and the web page. I just blocked the *.twitter.com domain and it was gone, eliminating the temptation to jump back in.
(I tried to do that with Google's tracking and ad shit, but when you block that much, a lot of the internet stops functioning. That is the true cancer on the internet.)