Interesting idea. I'm cautious about using extrinsic motivators such as financial rewards. Hopefully we can take the education route instead and people will be intrinsically motivated to vote. Also, if financial rewards are involved we might see more vote buying which probably isn't the best way to determine who the best witnesses are.

I agree, it takes work to figure out who to vote for. But it's also a good thing to do to protect your account and investment.