By the way, I was chatting to Jason the other day about the tipping/bounty feature: "So far the tipping results in 2-10x the amount of response... so clear

By the way, I was chatting to Jason the other day about the tipping/bounty feature: "So far the tipping results in 2-10x the amount of response... so clearly it works. Give it time! :-)" Maybe it was worth re-creating Yahoo's service just for that one extra feature, we'll see! (Though it won't have been if search engines penalise them for cheap tactics like this.)