When I am online, whether I am on a forum or Facebook, I try to keep in mind that behind every pseudonym and avatar is a real person with real feelings. For that reason I temper what I write because I have no idea what each one has suffered or what they are going through on any particular day. I don't give myself the freedom to be cruel for the same reason I don't pull the wings off flies.
IMO, magazines like Charlie Hebdo go far beyond offering fair and reasoned criticism of religion. They aim to deliver death by a thousand cuts to any and all religious faiths and in doing so they stir up strong feelings, not just among the muslim community but also among catholics and Jews. Most of us deal with our anger without becoming violent but some, from cultures where insult must be avenged, have a lot of difficulty doing this and resentment grows with each fresh insult.
One of our more vile cartoonists entered the post Charlie fray with a sketch of a fat, pink pig skewered by a pencil being roasted over a fire
Mods - please edit this if it is too offensive
In associating the Prophet with a pig with a Halal stamp, he couldn't have been more offensive to muslims, radical or otherwise.
Now he is under police protection. The publicity is exactly what he was angling for IMO. He's cashing in.
Let's now forget that there's a subtle difference between you and I voicing our opinions openly and someone who sets out to be offensive because they want to make a buck and notoriety is a good way to do that.