I'm finding this entire thing absolutely baffling.... are you a social worker? Why is child protection being done over Facebook. Why would accusation by social media be an appropriate step for anyone to take and for anyone else to investigate?

Child protection concern... raise it with your local child protection team or safeguarding official. Social workers and the police investigate, they take further action and remove the kids using legal protection afforded by the courts. At no point should anyone be undertaking an investigation they're under qualified for using any form of social media or even talking and comparing notes based on assumptions- if nothing else, it hands the entire defence team a barrel of refutable evidence if the matter ever went to court.

This woman sounds mentally unwell. But as someone who worked in child protection for 15 years, this whole article has an air of uncomfortable questions arising about process, suitable advice and undermining the rigours of child protection. So yes, I agree 'see something, say something' applies, but never to the person you presume is abusive and I would suggest not to someone random on Youtube or 300 people in a chat group. Social services. Say something to social services or if the situation is life threatening and urgent then the police.