Earlier quoted context omitted.
perhaps, but the underlying post is remarkably light on actual metrics and details -- or even specific examples -- of what quality decline means.
Sure. It's his blog. Providing you with hard evidence to drive your product design process isn't his job. It's yours.
That's actually what Stack Exchange is about, so it's not surprising I guess that there's this impedance mismatch. If you want to just have a bunch of opinions, take it to Quora.