The parades are really wonderful and if you can fit them in, they shouldn't be missed. No matter how quiet the parks are, they seem to "fill in" for the parades anyhow. I wouldn't let 1 thread sway me from seeing them. I mean we have all encountered rude people be it at the grocery store, airport, gas station, or WDW. Doesn't stop anyone from going back though. I wouldn't worry about it-- and have a GREAT time!