A question... If I have a store of entries, which of course contain many <link>s, and at some point I retrieve various of those links and find that some of them respond with 301 Moved and a new Location ... should I then be updating the <link>s in my store? What if those particular <links> had @rel="in-reply-to", and per that spec would be the <id> URIs. Would updating those URIs be wrong?
Of course if updating the store at all would be wrong then all bets are off. e.