Because they remaining main usage of twitter seem to be people "tweeting" small important (from their POV) bits of news. This could be political news but also e.g. announcements of content creators.
The changes in the algorithm already where not so grate for some people for this use case.
But most important for this use case is that this tweets need to be world readable even if not world discoverable.
With this gone a lot of people now have to look for a place where they can do world visible announcements, and at that point why not only use that place? Especially if it doesn't require you to e.g. buy something like twitter blue to increase the chance that people subscribed to you see your announcement.
My argument is:
Because they remaining main usage of twitter seem to be people "tweeting" small important (from their POV) bits of news. This could be political news but also e.g. announcements of content creators.
The changes in the algorithm already where not so grate for some people for this use case.
But most important for this use case is that this tweets need to be world readable even if not world discoverable.
With this gone a lot of people now have to look for a place where they can do world visible announcements, and at that point why not only use that place? Especially if it doesn't require you to e.g. buy something like twitter blue to increase the chance that people subscribed to you see your announcement.