An additional situation. What about participation in "pledge only" activities? For example, some campuses may have events for pledges only - like Sigma Chi Derby Days. The pledges are being "asked" to participate in something that the members are not.
Again, I don't think of this as being hazing - and normally wouldn't ask - but the way everything seems to be viewed as hazing gets me to wondering.
Which quite frankly, isn't always a good thing.