I guess it depends how you define stupid. DANC demonstrates an inability to stay on topic, to respond intelligibly to posts, to understand the arguments he's responding to. I call that stupid. But maybe it's only because he pretends he's so smart, and so I'm confusing stupidity with arrogance.
He knows exactly what he's doing. His sole purpose in posting here is to sow dissent and stir up shit. He's the very definition of an Internet troll, and he's good at it. Don't take the bait.