I can't buy ss and nor can I download the app, but the novel I'm reading requires, on average, 20+ ss per chapter. Now, I'm not a very lucky person, so after using an energy and power stone along with daily check-in I considered myself lucky if I got 19 or 20 ss. That way I can read 5-6 chapters a week (not even 1 a day).
By making it so we get rewards besides "simple ss" you are making it so that I'll be lucky to read 3 chapters a week. At that rate, I may as well just drop the book, and the website.
So I ask you: Are you trying to drive away those that can't buy ss or use the app?