Tentative-Posting-ScreenCaps

First you write your comments

second you get tempted to register

then they break the news you must confirm

Its very effective in that the user SEES the results and then must only do one more thing. The rubber stamp is genius! This could be woven together with the SLEEP function that allows the user to hide announcements because they have run out of stock. This function allows them to unSLEEP their product when they get more.