I disagree. Unsolicited redesigns are a great learning resource for wannabe designers such as myself. For one, the good redesigners often offer several concrete

I disagree. Unsolicited redesigns are a great learning resource for wannabe designers such as myself. For one, the good redesigners often offer several concrete tips about good design, of course backed with visual proof. Even the amateur redesigners are usually at least presenting some alternative ways to imagine the interface. I doubt they're doing it so that the design is implemented by the companies, that's not necessarily the point of designing something.