I certainly would not not want DD to play for a coach like this, 10U would just makes it worse.
I think it's a lame move if done just to mess with the pitcher but if you are a HS pitcher it shouldn't have much affect on you.
switching for legit reasons is of course fine.
I don't see it as any different than fake bunting on 3-0. Especially if they move their bat around while the pitcher is in her motion.
well, waving the bat around with no intent to bunt is pretty lame, too
I agree, but you see it all of the time.