I saw a posting by an idiot who planned to stiff his steward and waiter on an upcoming Carnival cruise because the fuel surcharge -- "which they add all the time" -- is just a scam. There's no arguing with a hostile person like that, I just let it go.
But I do wonder at Star Clippers which just announced an $8 per person, per day fuel surcharge. A SAILBOAT???? In the Caribbean thy're under sail all the time.