I’m guessing that OP can’t even comprehend what reasonable person of rational mind would report a child in no immediate danger for being neglected. OP is calling it trolling because it’s hard to believe people are that stupid and therefore must be doing it simply to harass others.

Concern trolling isn't the same as just trolling about being concerned it's a specific type of interaction around delegitimizing the other viewpoint via faking support of the view but raising concerns you don't actually have that may raise doubt about the view to others.