The piece is entitled "Because They All Suck".
Anyway, he's tired of this endless debate. So am I. Of all of these types of debates, actually, C# vs. VB .NET. Java vs. .NET. When I was in college is was Vi vs. Emacs. And each side always has their impassioned followers, full of points about why theirs is better and yours sucks.
He thinks that both camps are wrong. They both suck.
The only truly sublime end-user experiences I've had have been with computers that weren't computers-- specialized devices, such as Tivo, the original Palm Pilot, the Nintendo Wii, and so forth.
General purpose computing devices are designed to be all things to all people. As a direct consequence, they will always be rife with compromises, pitfalls, and disappointments. That's the first secret of using computers: they all suck. Which makes the entire Mac vs. PC debate relative degrees of moot. I learned this lesson early in life; evidently some people are still struggling with it.
Computers don't define your personality. They don't make you cool, or hip. And neither do what editor or language you use. What makes you cool or hip are what you produce with your computer, language, and editor. Or as Jeff puts it (and I love this last sentence--emphasis his):
That's the other problem with the Mac vs. PC debate: it completely misses the point. Computers aren't couture, they're screwdrivers. Your screwdriver rocks, and our screwdriver sucks. So what? They're screwdrivers. If you really want to convince us, stop talking about your screwdriver, and show us what you've created with it.