He's asking for specific elements of the reader that people found useful, enjoyable, easy to use. I'd say that's valuable. How is it not?
That's what was useful. I really don't get what he's aiming for here... obscure features that may have existed that only some people thought were useful?
Especially TOR looks like a great replacement but it's still pretty overloaded.
> There are 25746 users in the import queue ahead of you.
And it has no "Export" as of right now.
edit: Formatting