This has always been a problem, but nowadays it is completely out of control. For example, you watch podcasts and see people who seem to have a basis on a topic, citing sources, the names of thinkers, but in reality they are intellectual fraudsters. When they are talking about a topic that I follow more closely, I realize at first that he is a charlatan, because as the interlocutor is unaware of the topic, the level of mediocrity goes unnoticed.