Many developers (most? I suppose there are more developers on Linux than OSX) would find that "configuration hassle" a feature.

I flipped over to Macs from Linux desktops (laptops) because I was tired of reconfiguring things every 6 months or so. This was also ten years ago, but there is something very comforting in having a dedicated system that is well configured and tested that also has a good command prompt.

What? Why would you suppose that? Developers don't like hassle any more than non-developers do. We're still people with work to get done.

That's why I quoted "configuration hassle"

Because you don't think they are? I do.

And you didn't say why you suppose more developers use Linux than OS X. My experience is the exact opposite.

Why? Configuration is a sysadmin or at best devops area. In my experience, most developers want to write software on a machine that gets out of their way.

They may need a particular flavor of Linux to test on, but those are typically server builds anyway, so not great for everyday computing. That's what solutions like Vagrant or cheap cloud servers are for.

Interesting how you call OS X UNIX, as opposed to Linux.

OS X is more close to his UNIX heritage than Linux.

If by "interesting", you mean "accurate"

By "interesting" I mean a BSD veneer over a Mach core is only marginally better UNIX compatibility than Windows Services for UNIX (also POSIX certified). Did you know you can call Mach directly to override basically all the UNIX emulation, including access permissions?

Only one of them is POSIX certified. Hint: it's not Linux.

Not sure why that's interesting, OS X is a UNIX system and completely unrelated to Linux...

OSX is unix