If treated like science instead of voodoo, messing with your computer becomes one of those "interesting things to be learning."

People who refuse to do this scare me a little. They got something somebody else told them works and they learned to live with it even if it has flaws. Now I have to wonder: how many refactors weren't done, how much technical debt piled up just because they did the same when writing code?

That's certainly true - it depends on the tools you use and problems you use them to solve, but sooner or later you'll see your "sharpening" stop giving you any advantage. That's the moment you should just stop :) And maybe try other tools: but that's always a non-trivial time investment and should be done only after making sure there actually is something to be gained from the switch.

This is true in most other areas as well. For example, I'm collecting knives as a hobby. I had to learn how to care for them and sharpen them. It's incredible how sharp you can make a knife given proper tools - whetstones ans stropping - you can get an edge which is sharper than any scalpel or razor. It's also a complete waste of time to do so: it takes hours to make a knife that sharp and it takes one or two cuts to dull it. Granted, my "dulled" edge is probably still sharper than anything you ever saw ;) but in the end I get the same edge I'd get without those extra hours spent on polishing it. It then stays that way for quite a long time. It took me years to learn how much sharpening is "good enough". Now, for my primary pocket folding knife, I spend 15-30 minutes sharpening it per week and get an edge I can trust.

It's the same in programming. Both sharpening knives and tinkering with programming tools can be pleasant by itself. It takes practice to recognize that "good enough" is actually really ok and that anything more than that is a waste of time. Still, I can't imagine not sharpening my knives at all. Or giving them to someone else for sharpening. The very idea seems crazy to me.

Ubuntu has even more powerful window managing key bindings by default (on OSX I need Spectacle).

For all other things I just don't care.

Because the latter isn't that bad ... I have apps misbehave about twice a week; chrome, skype, yelp, google voice - they all need an occasional fresh start - a convenient way to do that I don't understand the objections against.

The biggest one in Mac OS X history I remember is haxies:

http://en.wikipedia.org/wiki/Haxie

"Haxies are a source of controversy among Macintosh software developers. Because haxies make changes to Mac OS X that Apple did not intend, they complicate the operating environment for other developers' applications, and are frequently the cause of system instability and unexpected crashes.[1] Applications by Bare Bones software display a dialog after crashing (or are force quit by the user) if haxies are detected on the system. The Omni Group routinely asks users to remove Application Enhancer modules before contacting customer support for help with their applications.

According to a post by an Apple employee on an Apple mailing list, Apple ignores all crash reports submitted by users if they show that APE is installed."

http://daringfireball.net/2007/10/blue_in_the_face

"Reports abound regarding users suffering from a “blue screen” after upgrading to Leopard: they upgrade, reboot, and get stuck at a blank blue screen.

But, as far as I can tell, there is no mystery involved. There is one and only one known cause for this problem: old versions of Unsanity’s Application Enhancer, a.k.a. APE. Versions 2.0.2 and 2.0.3 of APE are apparently inert but harmless on Leopard. But at least some, if not all, versions of APE preceding version 2.0.2 are incompatible, and will render the system unbootable if left in place during an upgrade."