Well, I've discovered that almost every intersection around where I live has at least a slight incline at stop signs! It's nothing you'd realize in a car. If I come to a a light/stop sign on a real hill, I slow down, unclip one foot, and pray the light will change before I get there. Since most of these are at places I do regularly (or at least a few times a year), I can time it. I do avoid these types of intersections, though, if possible. I am pretty strong, but I do find it very difficult to start at even a small incline. I am sure this is the same reason I find it hard to stand up while climbing. Of course, now, it's in my head and like Indy said, I anticipate trouble. I've been known to scoot across a street, which is just ridiculous.
I don't obsess on this, but when I plan a group ride, I work pretty hard to avoid all spots like this. Several of the participants on my rides have thanked me for this, so, I know I'm not the only one.