I believe we have reach a time when such award could be beneficial to the site.
Patronus Award
There will be three levels.
Bronze: 5
Silver: 10
Gold: 20
The award should be given retroactively to members no longer active as well. This will serve to promote the award by increasing visibility.
The vast majority of citizen patronage less than 5 members so is a reachable number that should be a incentive to pursue more members. the number between 10-19 is still a fair amount but relatively a small group. 20 or more is a rarity.
A system of a small, medium and large award could be given but still color codded.