I only play on Stake and FuturoBet - I know that both have affiliate programs but I don't really use any of them. Maybe because I mostly play for fun and I don't find a need to engage more people in this. But I believe there are many people for whom this idea should work really nicely
Sometime last year, i got some reasonable amount of dollars from affiliate program from one of the most respected gambling site on the forum because of my referral. I got this guy from FB and gave the link out but was surprise to see that he was a gambler and he invested much on the site and i equally get my reward from the affiliate too. my affiliate links are always be shared on my FB group page.
Lucky for you as your affiliate really playing the game and deposited real money and wager from your affiliate gambling site, free money as the casino house will pay you out from the money your friend bring to the site, personally I don't experienced this kind of luck but a also do the same keep sharing affiliate and wish for some luck..