a) The best people of your side, may not be the best people to talk to the other side. Think rhetorics and clarity, vs depth, knowledge and insight. b) It can

a) The best people of your side, may not be the best people to talk to the other side. Think rhetorics and clarity, vs depth, knowledge and insight. b) It can be gamed, especially online, by people being moles. c) There is usually a lot of context, "axioms" that make something "obvious" to you, but are too many to easily say to the other side.