This is a very clumsy coverup. Facebook is retaliating against the Cambridge Analytica whistleblower, cutting him off from his Messenger contacts and making it impossible for him to verify what he communicated to whom and when.

A friend of Facebook whistleblower @chrisinsilico just showed me that the company have blocked his posts on Messenger as abusive or spam pic.twitter.com/fMgPiC2p2q

— Damian Collins (@DamianCollins) March 20, 2018