Help Panel needs to tell players that currencies can be sold at vendors

Probably in the Currency and/or Vendor Recipe pages.

Here's an example of a not-so-new player being stuck (in not being able to identify items at the moment) because they don't have enough Scrolls of Wisdom, and they cannot find an NPC that sells them.
(Apologies for linking to YouTube.)
(And of course they are far enough in the game that they have stopped picking up normal items that sell for fragments of scrolls of wisdom, and probably don't remember about that.)

You would think that players would experiment with selling currency... but I guess it comes from the name picked : you don't really think that a 'currency' can be NPC-sold, the same way as if they were called something like "crafting materials" could be sold ?