I dislike this style of communicating a point. There has been an epidemic of it on the web over the last year or two (that and its close cousin, the "X Reasons Why Your Y Sucks" post). Apart from being crude and overused, I think it sends the wrong microsignals. Many good ideas seem dumb at first. To me it indicates a deep misunderstanding of the creative process to blast anything in the delicate, incipient stage with this kind of harsh language. The most consistently creative people I know don't do it.

This may be a merely stylistic point, a matter of taste, but I suspect it's more. The way one puts things has effects. In particular, it affects what ideas and possibilities open up next.