Revealed: catastrophic effects of working as a Facebook moderator

Exclusive: Job has left some 'addicted' to extreme material and pushed others to far right

The task of moderating Facebook continues to leave psychological scars on the company's employees, months after efforts to improve conditions for the company's thousands of contractors, the Guardian has learned.

A group of current and former contractors who worked for years at the social network's Berlin-based moderation centres has reported witnessing colleagues become "addicted" to graphic content and hoarding ever more extreme examples for a personal collection. They also said others were pushed towards the far right by the amount of hate speech and fake news they read every day.