If mine kept doing it after I asked them not to then they wouldn’t have access to my child. That being said if you post pictures then it’s hard to have them comply but if you don’t then they shouldn’t either
I feel you need to get that person permission to post their pictures.
How about just email not on Facebook or do the old fashioned photograph
They don’t respect your wishes look time is so different now so many sexual predators ask your sheriff bet he would say don’t post children for the whole world that is enough reason to say no
Let them know they are putting your daughter at rick. The pedifills out ther can find her just from their posts. Let that sink in for them!