Me too!
Very true, but I think the OP was regarding the behavior of the person doing the passing. In that light, if the passer gives the passee plenty of space, then the passee should safely be able to turn her head to check for traffic prior to swerving to miss a pothole. I really would rather have the space than the call-out. Once you're on my back wheel, ready to squeak past me with no clearance, that is NOT the time I want you to yell in my ear!And if there are tons of people passing me, I definitely do not want EVERYONE yelling to me - just give me space. Calling out to me does not necessarily mean that you are acting "predictably and safely" - it is no replacement for leaving a safe distance.
Both riders have a responsibility to be 1) aware, 2) courteous, 3) predictable.