Martin Atkins wrote:
I suppose the general case is that when the user adds additional
metadata their entry becomes a pointer to the original item rather than
the item itself, so the id (and everything else, for that matter) is
different in this case.
That makes sense to me.
As for the un-annotated case where essentially the same entry is showing
up in multiple feeds, perhaps a reasonable approach to making it easy to
recognize them as the same entry would be to give them all the same
atom:id, and give them all an identical atom:source pointing to The One
Feed To Rule Them All from YouTube, which perhaps would never really
exist -- sort of a "dark matter" feed that just binds the other feeds
together.