IMO as a hacker it's better to focus on maintaining a personal website, feed and newsletter which is under your control rather than spendeng time on a giant platform which is fully out of your control.
First there was a popup blocking the screen and scrolling telling you to log in or sign up if you clicked on any post, image or other user. At first you couldn't dismiss it. Then they changed so you could dismiss it but it would move you back to the point where you clicked (essentially as a back button). You could get around it by reloading the page instead of dismissing the popup, then you got to the page you wanted. Now they're testing activating the popup after you scroll through the feed a bit with no option to dismiss.
I imagine everyone posting to twitter have no idea this behaviour have been introduced and that twitter is trying to wall their garden. This is especially depressing since there are a number of pandemic related posters (Kai Kupferschmidt among them) who have interesting feeds, but no other communication channels that I know of.