I am a large FIM holder (from IPO) and I even I think it would be nice to have incentives for smaller FIM holders to get involved.
We'll think this through how to arrange it, but it's very difficult to do without skewing the incentives towards unfairness.
Bonus rewards are not paid very often, so random variance will play a big role and even small time forgers have a considerable chance of hitting the bonanza on one of them.
Reward the first account whose balance is less than or equal to 1M FIM starting at block 10,000. That's an easy way to skew the rewards toward small stakeholders.
Give 50% to account at 10,000 (likely to be large stakeholder) and 50% to first small account following block 10,000 (guaranteed to be small stakeholder).