Two parallel questions to get community feedback.
- Maximum 50 posts per week is good enough or 40 per week is better?
- Would you like to have $250 or $200 per week?
For me, being 50 is not a problem, but I believe that for some it is more complicated. So, I think that for many people, 40 posts/week would be easier. But the number 50 looks prettier.

The point here is: if 50 posts will give you $250 and 40 posts will only give you $200. I believe that even those who have greater "difficulty" will prefer 50.
In summary, Green Zone will be removed and Merit Rank will be introduced.
At this point I agree with @cryptofrka this element should be added sparingly.