The “blue check” system which was previously used to denote verified users were who they claimed to be suddenly became a complete cash grab for $8 a month, even more for companies to have verified checks or sets of them? Then when not everyone was buying in those users were pushed to the top of replies to users posts. This of course caused tons of people to just get blocked outright because of their checks.
Additionally i believe he has threatened to remove some companies handles because they stopped using them most notably NPR.
Now he has floated the idea of removing the blocking feature because reasons? Who knows what he thinks. So the functionality has not changed a ton, for now, the quality of what you get has gone down.
Oh also he made a specific exception and unbanned some user who posted literal child porn