I’m a bit late to the party here and drinking from the fire hose, so forgive me if anything is misguided.
I agree that the effort to run these initiatives is extensive, and to do so regularly is that much more so. I also agree that 18 month time cycles for new delegations is prohibitive to encouraging new entrants. I would support expanding the program’s pool such that it adds new seats at regularized intervals.
For example, an initial 12 seats are selected, with 6 additional seats left unallocated. Every 6 months, the next two highest ranked delegates by the KPIs set are included. If the requirements look back is less than 6 months (perhaps 3), this gives incentive for even newer delegates to participate more. I just fear that if the incentive is as far as 18 months away, the reward for participating becomes a bit abstact.
Has there been any discussion on either directly capping or soft pointing users in a way to set max delegations from Unistaker? This would force a more diverse distribution. Albeit, overly-constraining caps could exhaust available, reputable delegation recipients more quickly and could force distributions to less qualified ones.