I have to disagree with the last one definitely, and depending on the spirit it is in, the first two as well. When I was in school each pledge class had to plan the semesterly date party. All the sisters helped us when we needed help with it (food, decorations, dates etc). I WAS NOT hazed in any way by doing this. Now if you don't get any direction from your pledge mom, or are expected to pony up tons of $$$ for an event, that's a different story.
Depending on the spirit, kidnaps, runaways and scavenger hunts can be a blast. I know that some chapters use this as an intimidation thing, but for others it's a fun tradition. I would be reluctant to say these things are always hazing or not hazing.
Some of the things I think definitely are:
-telling pledges how to dress (other than ritual attire)
-telling pledges who they may or may not date
-pressuring pledges to not have contact with their non-sorority friends
but then again, most of the sororities that I've heard of doing this to pledges, impose the same guidelines on their sisters as well....
