If the kids are literate enough they will eventually google family members, and will see a whole bunch of people (maybe even us!) pointing out exactly what was wrong with their home life. Most people with shitty childhoods never get that kind of validation. However, most people with shitty childhoods also go through it with a degree of privacy, so it is a trade off, one they had no say in. It is great for them to have so many strangers insulate them from amys gaslighting, but it is also going to be super embarrassing that anyone can find out they are victims of child abuse from a 500 pound exceptional individual in a hijab.
alternately, I have heard of abusive parents removing the door because they don't want the kid to have privacy. kids in really twisted households have had this leveraged against them for masturbating.
I have also heard of parents taking the door when children won't stop slamming it, which I honestly think is a sensible consequence if it is temporary..