Now that tanking has been squashed, time to look at Shell Alliances.
Possible solution:
Introduce Rating Degeneration for tiers 1-10.
During Seasons, if an alliance does not enlist for matchmaking they suffer a degeneration in points based on their current war tier.
I do not see any flaws in this, so please point them out if you notice them.
The degen only affecting tiers 1-10 protects smaller alliances that wish to only participate in wars occasionally.
The degen during seasons allows alliances of all tiers to take an AW break during off season.
Degen based on enlistment ensures alliances which failed to find a match not suffer the degen.
Alliances will either have to enlist and fight or not and suffer degen. This forces Shell Alliances to either suffer a degen or fight a war with no participants and lose... both resulting in a loss of rating.
Thoughts?