But anyway, from what I've seen, it seems to me that Luna is the only absolutely LOVED Princess that hardly gets ANYTHING negative said about her at all.
EDIT: Okay, for those people in the comments who are saying things like "Yeah, Luna is best Princess/pony!", you're missing the point of this. I DID say this was not an anti-Luna message, but I did NOT say this was a PRO-Luna message either. It's supposed to be a defense for the other three Princesses as well.