https://techcrunch.com/2023/03/23/twitter-will-kill-legacy-blue-checks-on-april-1/

Twitter has picked April Fool’s Day, otherwise known as April 1, to start removing legacy blue checkmarks from the platform.

Despite the significance of the day Twitter chose, the removal of legacy checkmarks has been anticipated for months now. Musk tweeted in December that the company would remove those checks “in a few months” because “the way in which they were given out was corrupt and nonsensical.”