From YPPedia

Dormant players

Players who have not logged in to the game in 10 days are considered dormant.

Dormant players:

• do not count towards the headcount totals of their crew or flag
• do not count as voting members of a crew or flag
• are not listed on the crew info pages, but rather on a linked page called "dormant members" underneath the list of active crew members
• after 14 days of not logging in, dormant players are fired from any jobs they had

To restore active status, a player must log in.

Dormant flag or crew

A flag or crew in which all the players are dormant.

Dormant labor

Players who are unable to provide labor to shops are considered dormant for labor. There are a few causes:

• Players without a subscription or labor badge cannot provide any labor, and will be marked dormant in any shoppe or stall they are employed in (all labor levels grayed out when viewing that employee on the list).
• Players who have not played a crafting puzzle will become dormant in that puzzle after 7 days