> Also, beyond that, I would strongly suspect that these PRs haven't been > fixed in large part because they're difficult to track down, and > possibly if we knew what commit had introduced them, we'd be a good bit > farther along in fixing them, even without having the help of whoever > introduced them.
That's my feeling as well. If we knew which checkin caused a P1 regression, there would be considerable "peer pressure" for the person who checked in that patch to fix it. I'm not clear that any "rule" would be stronger. I think the point is that we no longer *know* which checkin caused it in most cases or that it happened so long ago that that information is no longer technically relevant.
