Damn! Why wasting time negotiating with the op about readjustment of bounty reward! This is their problem as far as am concerned because if they really want to promote their exchange or whatever they have to do better than what they are offering,
It is not as if anything is hidden, they should go to the btc payment campaign section and see what is being offered,
And if they feel they being too generous to members here by paying $8 in a campaign duration, they van as well go higher a marketing firm am sure they will be glad to accept their generosity