Your phrasing makes me think if I'm just too brainwashed by git as well, but, yeah, I wouldn't want anything to be added by default at all. While working I do all kinds of stuff I'm not going to commit, like debug statements and rough sketches, maybe some temporary scripts. And even though I do usually glance over diffs in the end, I don't really read them: that is, even if I did, it's not really my thoughts I see on the screen at that point, I'm as likely to notice mistakes there as I am in somebody else's code, if not less.
When I'm adding a change, on the contrary, it's something I wrote minutes to seconds ago, I know what's in that code, and by adding that I'm kind of making a statement that this wasn't some random bullshit I do with the code, but something I intend to keep (even if later I'll completely change that while interactively rebasing or something like that).
On the other hand, I didn't complain that much back in the day when I was using SVN. But I feel like my current workflow that employs most unique features of git is actually much better. Basically, horribly inconsistent CLI is the only complaint I have about git.