Should wiki edits that were flagged "minor" receive less (or no) karma though? I check that box for almost all of my edits, as they're mostly of the grammar, spelling, and sentence flow variety. (Yes, I know. I'm the "horrible fairy".)

I don't feel I deserve karma for that work. In fact, I've hoped that by checking the "minor" box, I'd avoid any karma gain. I don't really know how that part of the calculation works now though or how it should work in the future.