Twice in 2 weeks I've helped a non-dev web user figure out why a particular site was "spazzing out" on them. In one case, a popup menu in the site nav would just "spin". In the other, any click to try to view the shopping cart wouldn't even spin...out to lunch, lights on and no one home...with not a shred of user feedback.
Well, problem. Most users wouldn't know to delete cookies, and it's a pain to delete all cookies. End users who know to delete just cookies from one url... Ug. Are we software engineers? How much do we really care when we make users feel dumb? (I'm Not being sarcastic. in both cases I helped, the user was sure they "must be an idiot" to even be asking.)
were humorous at best. (Though, the images for the cookie migration search looked pretty tasty.)