All you need to know about Gruber is in this claim of his about phone photography, in a critique of a NY Times tech journalist who deigned to acknowledge that readers could just use flash to get better low-light photos:

A mainstream technology columnist should be explaining to readers why they should not use flash, and how best to capture low-light photographs without it. “You could always just use flash” is technology malpractice.

In reality, a mainstream technology columnist's job isn't to encourage readers to cough up hundreds of dollars to buy the newest phone for the sake of something that might be of negligible importance to most of them.

Gruber clearly thinks his job is to always encourage readers to buy the latest Apple phone. At least when his job isn't to sniff his own farts.

Flash is also technology! Most photography and videography is done using artificial light! There aren't many people walking around with spy satellite lenses like fucking Kubrick to do natural light camera work.

Also I think he's a bit of a fancy watch douchebag.