When someone shares a deck on Ankiweb, they usually write a description; e.g., how the deck was made, how it should be studied, etc.
I think this Ankiweb description should be included as the deck description in the downloaded .apkg. This would give downloaded decks more character and make them easier to distinguish if they have similar names (which is frequently the case because they come from similar search queries).
Perhaps there should be a character limit at which the description is truncated and the remainder collapsed; the user can then click on “… Read more▼” (or similar) to expand it.