Not too stupid if you ask me. I see one major problem with it though. On each end of the swing, the cars are going to jostle and really shake the hell out of the riders. Someone brought up putting a chaos on the end. That idea would actually be really good. You take the standard delirium wheel, put chaos cars around it and those things would spin every time you crest the swing arc. Can you imagine making the downswing completely upside down with your head a mere few feet from the ground? Wicked!
A swinging Chaos would be a great idea! Actually, I used to think that Exalibur at SFStL was that same concept before I went out and saw it in person. Looking at still pictures, I had assumed it was a swing ride.
Has anyone seen this "High Energy" ride? http://www.amusementrides.de/ Click on "VideoClips" on the toolbar and you'll see the "High Energy" ride video second on the top row. Here's a swinging ride that actually looks more intimidating than Delirium (IMO).