Not sure if anecdotes are allowed in meta threads, but when the iPod was released I, being the opinionated 20 year old I was, fired off an email to steve@apple.com telling him why I thought the iPod was a bad idea, especially because it was expensive and furthered the idea that Apple stuff was expensive, and how that was bad for them. Within a couple hours I got a reply from Steve Jobs explaining patiently why he disagreed. I guess he kinda won that argument...

Yes, although limited to its initial release, since anything related to long-term impact or later versions will still be a violation of the 20-year rule.