These are all strictly different urls:
http://www.example.com/page http://www.example.com/pAge http://www.example.com/page/ http://www.example.com/paGE/
I get that it conforms to the strict ISO rules, but why? How many websites are there out there that actually treat
page/ as different url's you can visit? Or actually use capitalisation to differentiate content? If they did I would tell them they are probably doing it wrong.
Why do we have to waste our time conforming to these rules? Isn't it quite trivial for Google to work out that
page/ are the same page and probably shouldn't be treated as duplicate content?