I would say that, no, parents should not be expected to internalize all of the thousands of different things we're finding out about the best ways to raise kids

I would say that, no, parents should not be expected to internalize all of the thousands of different things we're finding out about the best ways to raise kids. It's far too much to know, and the knowledge is currently too tentative. But, it's also pointless to bring that up every time a new study comes out, because these things are good to know. That's probably why the GP is catching downvotes.