There is a thread on AIBU where the posters are gleefully sharing tales of violence against children including one where someone's ex tripped a child so that "his face was turned to mush".
This is just the tip of the iceberg of the anti-child sentiment that seems to be permeating MN. Yes, people have always eye-rolled about other people's children, but there seems to be something increasingly sinister happening. Not everyone on MN is who they claim to be. We know about all the people who find pleasure in various types of attention- seeking, plus the standard Herberts, but there are unfortunately also people who enjoy children suffering and it very much seems like they've found their way onto Mumsnet.