I'm not saying that this particular case is reasonable, but:
> Who decides what is and is not appropriate?
Common sense. For millennia, human society has regulated itself by employing common sense, civility and good judgement. It's not that hard, really, even without a foolproof mathematical algorithm. Sometimes mistakes are made, but that's just how we people roll. If you accidentally go beyond the confines of civility, someone will point that out to you, you say "sorry", fix your mistake and move on. It's no big deal. Your freedom of expression is not hurt, just your freedom to behave rudely in public with no good reason. AFAIK, this has always been regulated pretty much in every civilized society since the dawn of mankind.
Agreed on all counts, I really don't get why you're being downvoted. Not that we care about internet karma, more that I wonder why others disagree with the points you've made.
> Who decides what is and is not appropriate?
Common sense. For millennia, human society has regulated itself by employing common sense, civility and good judgement. It's not that hard, really, even without a foolproof mathematical algorithm. Sometimes mistakes are made, but that's just how we people roll. If you accidentally go beyond the confines of civility, someone will point that out to you, you say "sorry", fix your mistake and move on. It's no big deal. Your freedom of expression is not hurt, just your freedom to behave rudely in public with no good reason. AFAIK, this has always been regulated pretty much in every civilized society since the dawn of mankind.