We also have a secondary seasonal check, that is meant to weed out unused and inactive characters. You must post something for your characters at least once a season to keep them from going inactive.
Inactive characters are removed from the pack folders, rosters and become unplayable and they will lose 50% of the Dust collected in their bank. Items will be untouched. If this happens, you will receive a note on DeviantArt alerting you to the inactive status.
An inactive (or retired) character's bank is inaccessible until they are reactivated/taken out of retirement.
Don't worry; your inactive character isn't gone forever!
You may pay a 15 Star Dust fee to reactivate the character after another season has passed. However, you must pay for that character slot again. I.e; even if your second ever character was marked as inactive, you must pay whatever their new slot would be. In addition to having to be reactivated, they will lose 50% of their Dust, so be SURE to submit for activity!
Characters that go inactive are simply mentioned as having gone missing - should you reactivate them, you may come up with your own story.