Yup this is surely browser mining as we have to install the tab which will be nothing but the code to send and receive the pool data. I'm sure the way you have represented it here, it won't work like that forever. Your capacity is actually dependent upon the user base you have and how much their computers are hashing for you. The good configured computer won't generate more than 40 H/s and combined with 10k user you might move around 10 MH speed and that's not even profitable for you. How could you give away 15% referral commission after your profits. That would be very less. Correct me if I am wrong.