Internal documents: Facebook's AI has minimal success enforcing its rules against problematic content, including removing just an estimated 3%-5% of hate speech (Wall Street Journal)

Wall Street Journal:
Internal documents: Facebook's AI has minimal success enforcing its rules against problematic content, including removing just an estimated 3%-5% of hate speech  —  AI has only minimal success in removing hate speech, violent images and other chronic problems from the platform, according to internal company reports