This is why I don't read Daring Fireball regularly. It's a blog solely focused on being skeptical about everything. The whole premise seems to be to find flaws in products/services and tell the world about them. I don't mind skepticism, but there's a difference between "it has these cool concepts, but it ain't perfect and probably will fail" and "it's going to fail because of A, B, C, D, … Z"
Gruber might be accurate, but in my daily reading I prefer people with a bit more positive thoughts.