Knowledge Vampire

Someone who is great is extracting information out of others. There are two kinds of KVs -- i) who keeps the knoweldge to themselves and ii) who shares the acquired knowledge.

KVs that keeps the knowledge to themselves are harmful to the society.. They collect knowledge for selfish reasons and use it against the person they acquired the knowledge from. It's important to identify them and seal them in their coffins.

KVs that shares the knowledge with others are good. They are like robinhood but the knowledge. They acquire and release the knowledge for the betterment of the society. It's important to identify them and promote them to free more knowledge to the world

This podcaster is such a knowledge vampire. He knows how to suck the knowledge from the guests.