The grayscale box-and-line nature of wireframes discourages emotive design, eschewing it for hierarchy, structure, and logic. That’s correct when your goal is deliver logical easy-to-follow experiences, but when you’re trying to make something fun, memorable, remarkable, or thoroughly engaging, it best to cast them aside.
Some things can’t be wireframed | Inside Intercom 1:18am on April 29, 2014