I'm wondering what others think of the underlying question (and the project too!)

Say you're new to a codebase but have identified an area you want to change, is there a way to use git history to figure out who's best to ask about it? Does the question matter all that much?

GitHub uses git-blame to figure out "suggested reviewers" for Pull Requests, which is a pretty awesome feature, and basically what I'm going for. I wonder if more detail/resolution is at all useful.