Devs should bring a scarcity approach to player ‘stockpiles’ of loyalty points.
Points earned should expire at the end of the calendar month one year after they are earned.
Players would receive a notification list of the respective factions to what amount of loyalty points are expiring that month.
Introducing rolling expiration at this time scale would help give devs an extra lever for designing recurring events (e.g. resource wars LP store) to help push player engagement with the motivation of not wanting to miss out on expiring points.