Bluesky, a decentralized Twitter-like social network, is pausing new signups “temporarily” to try and resolve performance issues it’s been experiencing after Twitter introduced limits on the amount of tweets you can see in a day. Even though you still need an invite code to be able to join Bluesky, it seems that the influx of new users has been a problem.
Since you are the algorithm for what you see instead of the system, you do have to put in some work to find content that interests you. But it is possible and rewarding when you do. Assuming microblogging is of interest to you of course.