Managing every playing card deck in the world is a hard task and one we can't do alone. Any person can help including you! You can add tags and fill in the gaps to decks by submitting a request directly on the deck page. These edits are then sent for approval where they'll be checked for content appropriateness and validity. Once checked your changes will be made live!
Each tag and deck upload you do to help the community gets noticed! Eventually you will have the opportunity to gain Contributor status on the site.