I just logged into BlueSky and saw that I have 656 followers. I had like a couple when I last checked, which might have been just days after I created it. I guess I'll have to actually think about posting things there sometimes now.
I didn't know how to use my domain before as my handle, but now I do. It took less than 5 minutes to make the change, have the DNS propagate at Cloudflare, my registrar, and have BlueSky verify it.
76 people have followed in just the last 2 days. Most probably because Philippe Papin followed me back today.
Maybe more have switched away from Twitter than I thought. I like it!
BlueSky makes it easy. It gives you the code you need to change in your DNS record. Or, you can even upload file on your website and have your domain be verified that way. That's even simpler, but I figured this was easier long term so I don't accidentally delete the file later.