https://arstechnica.com/tech-policy/2023/01/twitter-didnt-block-child-sex-abuse-hashtags-until-journalists-pointed-them-out/

Elon Musk said in November that Twitter's top priority is eliminating content that sexually exploits children. But Twitter apparently didn't take action against a series of hashtags and keywords used to promote the sale of child sex abuse material (CSAM) until after NBC News identified the problem in a report published Friday.

Twitter blocked searches for the hashtags and keywords on Saturday, NBC News wrote yesterday.