Facebook blames coronavirus for failing to remove child nudity (independent.co.uk)

That there was so much of it they didn't have resources left to spare for the child porn.

"Despite the impact of the coronavirus pandemic, Facebook said it had made improvements in certain areas such as terrorism and hate speech. This was due to technological improvements of its moderation system, which allowed Facebook to take action on 8.7 million terrorist-related posts in the latest quarter compared to 6.3m in the previous quarter."