Hell, even though they're not a religion, why not make fun of atheists too? We can't be the only people on Earth willing to take the piss out of ourselves.
I've stated above my opinions about a "making fun of what's important to people' day.
You should be neutral at first; if neutrality entails civility, then be civil. But there are consequences for making it a social norm to always be polite first.
Well yeah, I'm just saying that there are proper ways to handle conversation with people.
But really, this thread shows that this day suffers from people getting overexcited and then attracting negative reactions.