What is the ruling on sending pictures of severe nakedness (ʿawrah mughallazhah) of a child or infant in social media groups for the purpose of entertainment, commentary, or comparison, and what is one's duty towards them?

It is not permissible to publish pictures of children's awrah (private parts) for the purpose of entertainment and commenting on them, due to the potential harm that may result for the child when they grow up, its contradiction with modesty, and its opening the door to temptation among young people. The perpetrator must be advised, and such pictures must be removed by whoever has the authority to do so.