Earlier quoted context omitted.
It is easy to pick one clear-cut case that supports one's viewpoint. The question is how to handle the more murky cases.
Sure, but by answering the clear-cut cases you've at least defined boundaries for your problem space.
To the point that it's incredible that the few people who actually do it are even telling the truth about why, instead of being cases of insane parents looking for a cover story when they want to murder their kids, or Munchausen by proxy or something like that.
Meanwhile the same principle gets you absolutely nothing in all of the non-obvious cases, because when the answer is non-obvious (and therefore much more problematic if wrong) then Facebook doesn't have it either.