Flatbush, why not email onlysimchas totell them of your concern? If enough people do that, then they may decide to remove pictures.
One reason I like pictures is because it helps you identify who the person is. I am sure there are a lot of “Chani Friedman’s” from Flatbush. How would you know if you should call and congratulate her? Maybe its a different person and calling her might make her feel bad because “yet another person got engaged before her.”