I think the whole house / castle thing is another one of those annoying Rationalist things. The desire to be technically correct in such a way that the big picture disappears, if you call it a castle or not it isn't important. And stuff like this leads to pretty shitty places, so you end up having long posts over 'is testing yourself for genetic diseases eugenics or not' while missing the bigger picture that the people who are having this discussion with you want to normalize eugenics again.