[ForHackernews]

I guess different people have different workflows. I prefer to make many tiny atomic commits that gives me very granular ability to backtrack if things go wrong.

For "conceptual chunks", I use branches or tags, and don't worry about the individual commits very much.

[mindcrime]

Same here. I don't generally care how "messy" the git commit log is, but when we reach a point where something is notable, then it's time for a tag/release or whatever.