On a few occasions, we've been taxiing with another aircraft ahead of us. When they neared the hold-short line, they angled the aircraft at about a 45-degree angle, apparently to avoid blasting us with their prop during the runup. But I was thinking, what's the big deal??? A typical light trainer sees airspeeds of +100MPH all the time. What's the big deal about a stupid prop blast??? I appreciate the courtesy, but really do not understand the point.
Edit: Is it because of possible dust/dirt being on the taxiway???
Edit: Is it because of possible dust/dirt being on the taxiway???