Ever encounter a piece of art or song that you found particularly moving or meaningful, only to read an interview with the artist later where they said effectively "That piece of junk? Yeah, big mistake, never going to do that again!" or "It was *meant* to be a joke (and the fans didn't get it)." Did knowing that its creator regards it as garbage affect how you viewed it going forward?
6/14 - ...and there's actually a trope for this:
http://tvtropes.org/pmwiki/pmwiki.php/Main/OldShame