Do you realize how many times the infamous"Why are atheists here" question has been asked?

You make a really good point. I agree with you. I mean, people that don't have any pets could go into the pets section (uming there is one) and give people advice on what to feed certain animals. Just because you don't have a pet doesn't mean that you don't know how to take care of one. I'm sure nobody says anything about those people, though. (I do realize that it is a very different situation, but I don't really feel like thinking up something more complicated.)