This is good feedback. What is your suggestion to make it fair to the smaller miners?
Just do 40 random miners for 1k each, it's the fairest way you can do it
or even just 20 randoms for 2k
This sounds about right, keeps it pretty flatly fair across the board, but I do see a purpose in rewarding donation %.
Maybe make it so you have to donate x% to be eligible into the random drawing?