you can earn 100-1000 points per day, and it all depends on the efforts of each member
I never targets. My activities in OC just in my spare time. Maybe in one day, I got the maximum points in 1000.
I thinks more than 1700 points you can earn per day easily, without any referral.
According to my own calculations, you can earn up to 1950 points per day. May be I am wrong. But I think so, after making some calculation.
you can earn 15000 points daily from the OC, for more information you can check the OC website.
Its on you, how much you can give your time to OC to earn more and more points. My average earning points are 300-400.