Make sure you follow all the terms of this on page 1, if someone wins and did not follow some of the terms (30 posts) etc they will be disqualified and a new winner will be drawn.
Im pretty sure this rule is few day old and im sure that over 90% of particiants are not aware of this new rule as well. I guess there will be some big disgust by winners not meeting this new rule
I could help with coding/testing if you have in mind fixing Bitcoin problems:
-be able to scale to CC usage numbers -hashing algorythm energy effecient or partially able to use for usefull computation -fixed yearly inflation forever to encourage spending economy
Last time I checked maybe 95% users dont using delay payments on CoinAd. You have to give the users some incentive to using this function, like withdrawing 0,002+ is free, below this is fee 0.00001 (because your smallest price is 0,00002)