In an effort to get the thread back on track...
There are only two possible reasons which make censorship valid in any way, in my opinion. Those two are:
- when the information to be censored is promoting or exploiting an illegal activity. The obvious candidate here is child pornography.
- when the information to be censored would/could lead to harm of "innocents". This is a more difficult area. It would include yelling "fire" in a theatre that isn't on fire, for example. It would also include some "hate speech". However, I don't think people's opinions should be censored. For example, I think it should be legal for me to say "All Jews are stupid" or "All white people are lazy". However, Moving from there to "We should exterminate all [insert particular group]" is more problematic, as it is conceivable that recommending/suggesting such could well lead to harm to that group. Another candidate for this category would be things like lists of intelligence operatives in another country. Publication of such a list would be likely to lead to harm to those operatives, as well as more general harm to the country whose operatives they are (since, presumably, they are operatives to guard against harm coming to their country).
Obviously, the above two categories aren't black and white - there is always going to be some gray. However, I can't see any room in either of them for censoring something because some people are likely to be offended.