Yeah that might be the reason I have never seen this. But whatever works for oneself is fine and worth to share.

There are quite nice deck ideas:

  + Facts about friends
  + Standard Library of your programming language 
    (https://ankiweb.net/shared/info/3937203746)
  + Bird Voices
    (https://ankiweb.net/shared/info/2088996377)

More here: https://www.reddit.com/r/Anki/comments/5ka1ny/what_have_you_...