Nice way to gain affiliates. Only 20 mbtc monthly poker free roll? so basically you are gaining the massive number of affiliates by providing 20 mbtc monthly? Not a bad trick at all. Nitrogensports already have massive poker free rolls so your 20mbtc is nothing. Make it at least 200 mbtc if you want the attention of real poker players. Hope you will ignore my offensive tone and get the point. 
Massive number of affiliates does not mean massive amount of earning, he may earn nothing as well if those massive number of affiliates are just freerollers who sign up with his ref link but they are not actually playing after the freerolls. Most freerollers will only for freeroll then withdraw once they won something unless there is a special rule to withdraw freeroll winnings. So spending 20mbtc per month to get affiliates is good enough to start his effort to get affiliate earning. Make it into 200mbtc not attract real players imho, but it will only attract more freerollers.