It's not. But it does highlight one of the essential difference between Conservative and Liberal thought.
'Stupidity should be painful'.
Anyone who would run a command like that without first running a web search on it is stupid. They deserve what they get. Sort of like pulling the pin from a greande without first asking, "What is this thing?"
You will find a lot of Conservatives here on FR Noob. That is why you will find a lot of people posting things like the rm -rf /* command. It's not meant to be funny but it will teach a lesson to someone who is sorely in need of it. Pain is temporary but it's legacy is long lasting. It weakness leaving the body.
Hoping for the electronic Darwin award. PING.
Along the lines of asking first, “What is this thing?” before pulling a pin on a grenade: What does “rm -rf /” do? Is it a reformatting command?