Nothing in your reply addresses my points, so I'm not sure what to answer. Yes, I tried GitX, and I'm not looking for (or using) Git GUI tools. This doesn't make GitHub for Mac less visually cluttered.
I'm mostly discussing GUI trends (as a Mac developer who cares about this stuff), using GitHub as an example (which, as you say, gets job done great, but I say that it can be improved).
Clutter means (let me open the dictionary) "a collection of things lying about in an untidy mass".
I never said only spacing produces clutter. Either I'm not explaining myself clearly or you read something that was not in my comment (this is called a strawman, right?)
You mentioned visual clutter, and then your first bullet point was about too much spacing. Clutter--according to the OS X dictionary you cited earlier--refers to a jumble or tangle of items, implying that they are close together. That's the discrepancy he was referring to.
His posts were completely non-hostile, so aren't you overreacting?
I didn't mean my reply to be a point by point rebuttal. Your description seemed to match GitX pretty well, so I figured I'd mention it.
The rest of my reply was pointing out how I perceived this to be different than GitX, which was tangential to the point, but I didn't really think a separate reply was required. Sorry for the confusion.
I'm mostly discussing GUI trends (as a Mac developer who cares about this stuff), using GitHub as an example (which, as you say, gets job done great, but I say that it can be improved).