I may not do even that after all, since it's not easy to determine when exactly someone supported or opposed the flag and what their state of mind was at that time.
That's probably for the best. I can think of (far fetched) ways to abuse this too: punishing someone for "voting" on a Flag can stop people from doing so. Then again, offering money can do that too: some people will vote, but others will be more reluctant because of the payment being offered.
I have seen companies pay for review.
Thoroughly reviewing a scam accusation takes a lot of time, and I considered this more or less a compensation for the time spent. But there's no checking if someone even read the scam accusation, and usually companies who pay for a review want to know for user users actually tested it.