A CM who I knew personally once jokingly (or maybe not) told me the following:
There are three types of CM's, those who know nothing and admit it, those who know nothing but make up some things that sound logical, and those who know nothing, make up some things that sound logical, and turn out to be correct. Most guests don't care for the first one, consider the second an interesting and knowledgable person they like, and believed the third must be talking directly to Eisner.