Just stepping in to announce a new change in the activity rules:
"...If you fail to post in the activity check but you are active otherwise, you just lose any available alt slots and can't register a character above Genin until the next activity check. If you fail and are inactive, your character dies in their comatose state. If you're inactive but post in the activity check, normal inactive rules apply and result in a coma. If that inactivity extends one week past the end of an activity check then you will be counted as dead as if you had never posted in the activity check."
If you value your characters I suggest posting and actively post on them! This new addition has been edited into the rules.