Honestly - how can those other chapters be so heartless and cruel!!
All I can say is, karma bites you in the ass eventually - if that is how you treat the weakest among you, sooner or later it will come back to you tenfold. If the other chapters bring it up, t will just make them look bitchy to rushees, imo.
Laura, I think that the "vote" is more of a courtesy to the other chapters so they know this is happening (in case XYZ's national prez or something pops up, for example) because whether this sort of thing is permitted should already be in the bylaws. If it's not mentioned, they can't shut the barn door after the horse is out. As previously stated, giving the other chapters a heads up is the nice and classy thing to do. It's sad when you have to be sorry that you were nice to someone.