Wow, Bobert, lots of generalizations in your post! I consider myself a bluegrasser but don't think I'm particularly loud or obnoxious. And I spent many years playing classical piano, contrary to your stereotype. Have however had many experiences with people from other genres ruining a bluegrass jam. I chalk it up to diversity and inexperience and try not to expect each jam to be perfect or rigidly defined.

John, I never heard that story about Monroe not naming his band, and it could very well be true. However, his band was named (by whomever) the Blue Grass Boys, presumably after Kentucky (not Indiana).

Another comment from Stringsinger that I have an opinion about:
The Stanley Brothers ..... have the redolent quality of old-time mountain dance music.

I don't associate dance music with the Stanleys although they probably have done that too. To me they are representative of the high lonesome mountain sound, the piercing mountain harmonies, the call and response and a cappella gospel sounds, simple, primitive and immensely moving. Think Ralph Stanley singing "O Death."