I say give him a little time (maybe a couple days) but other then that I agree with gregorio's deleted post
btw, iirc that guy plays decent stakes/volume and doubt he would have a prob following up on what he offered. Also, no one should have to pay for cliffs/good posts/contributions/etc but when it's a request of that nature then I agree with offering someone something to do something I specifically want, and if they did it I or whoever offers should def follow through.
Again, he deserves some time though.