[MetaCosm]

First of all -- I think the letter from MailChimp was very polite and straightforward. The posters expectations (hopes?) are insane

That said, what are the rights around "clean room" implementation of website designs? If I simply pull up a site on another monitor, and build a clone of it from scratch (omit the logos of course), what are my rights?

Sadly, it appears the Popular UIs guy didn't even bother removing obviously trademarked and identifying logos. His argument that "sharing PSDs is a great way to learn" doesn't explain why he left logos in the work.