What I'm going to discuss here probably has been already discussed but I'm too lazy to review a 55 pages thread.
Mr. Admin of the CAPTcoin, you are giving the opportunity of getting the coins via web by solving a set of 3 CAPT-chas, so everyone can get a probably fair share of the coins, however you, as the admin, could easily auto-assign rewards to yourself, and you will be getting an UNFAIR share of the coins. How can we know that you are not doing it? How the reward system works?