Dolls are already creepy. Facebook Marketplace dolls? Worse. THESE ones?? Probably as bad as they get. The one in the high chair looks like she's gonna beat me up if I look at her wrong. The top middle one looks like he's going to go full Sour Patch Kids on me, come alive, and shave my head. Don't even get me started on the one in the upper right. That's the one we don't mess with. That is some Coraline sh*t. He will actually kill you, and your entire family, and find a way to be passed down to another child to repeat the pattern.
This marketplace seller has a ton of baby dolls posted. I don't want to know why. There isn't a good answer here. Some of the dolls are as high as $375.
Gives me the creeps, but you can let your baby doll flag fly and order them here if you so desire.