These would be considered fairly serious hazing incidents these days. Colleges have very strict anti-hazing rules. Of course, many orgs blatantly break the rules, but you'd be surprised what's not allowed according to the standard (basically everything)

&gt;Another was going to women's clothing store and asking an employee for help with trying some clothes - what's even objectionable in that?

This would be considered significant hazing. The point is to embarrass the member, which in this case is an extremely mild form of emotional abuse. Fraternities have gotten in trouble for playing dodgeball. 

I'm definitely against real hazing. Some of the stories would absolutely disgust you. Still it seems strange that we as a society feel the need to crack down on the mildest of offenses as if they're severe. The people that are really abusive will never follow the rules.