They did not. You can read articles I have posted in the past week outlining record levels of CSAM material on Twitter in recent days. No algorithms were fixed in a manner to be effective at stopping CSAM posts. Child exploitation material is still at record highs on Twitter.
Conveniently timed article following the Stanford revelations. Weird how out of all of Jeff Horwitz's social media articles as of late, none involve twitter. Is Elon calling in favors to Murdoch or just internal policy? https://www.wsj.com/news/author/jeff-horwitz
Plenty of articles posted recently right here in this forum that provides piles of information. Go have a read.
Good deal for creators or small business to keep its audience This Musk freedom thing will hurt facebook