Cheers for the definition of hyperbole...
but what I was referring to is when someone says "I was hit by a 2 litre bottle, it hurt, I'd rather not get hit again", they're not exaggerating, they're simply saying what happened. No one here has suggested that people are dying left and right, and that crowds are waning to ridiculous levels because people are put off by these antics. What they are saying is its a serious matter and almost impossible to police when you have 60 odd thousand people in the G throwing their hands up, and many of them actually are throwing paper around (which whilst stupid, isn't that harmful or dangerous), yet maybe 40 are throwing full bottles, and one scum bag has decided to piss in a cup and throw it.
People can claim big brother, fun police etc. all they like, and generally when comments like those come out on issues, I often agree with those sentiments, but this isn't a case of any similarity to the trumpets and the beach balls (although the beachball ban has been the case for years now, many years), its an issue of public safety which for the most part, isn't removing vital liberties of the fan.
And in regards to you can be hit by a beer cup without a wave going on, its easier for the security to catch that person then, so its not such a problem. When thousands of people are standing up, its a bit harder to pinpoint the culprits.