My favorite quote is from my sainted, dear, 5' tall, sweet grandmother, rest her soul...
She's from Texas, and we took her to an NC barbecue (the pig in a blender kind), and let her try it...
after a bite or two, she pushed it away, and said "This is dog meat"...
I don't know from Eastern NC barbecue, but the newspaper had a 'purist' who insisted you couldn't get 'proper' BBQ west of Greenville...
Actually, a couple decades ago, the US government tried to establish an 'official' description of barbecue...as far as I know, they're still not ready yet....