I kind of disagree with the first one. Owning a BIG camera is OK. The issue is whether you have the knowledge and skills using it. Interestingly enough, he did not mention about the BIG lens.
I've actually been informed that so-and-so is a better photographer than me because their lens is bigger (insert exaggerated gestures to demonstrate lens size) when I'm happily shooting with my 55mm. Yes, I know my lens is small. It suits the purpose for what I'm shooting. I don't want mega-telephoto to shoot kids inside a building!
ETA: I do own some bigger lenses, but rarely use them, since I don't need telephoto much.