They’re an Egyptian idiom that says “If the person that is talking is crazy, the one that listens is not”. There could be a lot of nonsense online, anyways the reader must be able to judge how reliable the information is. An online library can solve a lot of problems related to the misinformation (also because opinions and targets can change with time) along with the awareness that not all what’s online is true; the only issue is the need to scan books and make them searchable by developing AI features. In any situation it’s better to refer to ability of making best use of the available resources instead of complaining about what’s missing with a problem solving orientation.