One counter-example is Reddit's old.reddit.com interface, compared to their new one.
and with it, kill /r/all (they are killing /r/all for new reddit)
https://old.reddit.com/r/modnews/comments/1ujtebf/logging_in...
https://old.reddit.com/r/self/comments/1vqrs7h/old_reddits_e...
https://old.reddit.com/r/reddithelp/comments/1qvz91a/where_d...
https://old.reddit.com/r/OutOfTheLoop/comments/1to1wc9/what_...