Tell me if I have this right - New coins given as interest will require 24 hours to mature, so total simple interest rate after 7 days of compounded interest will be 17.71561% less.
This is what would happen if there was no waiting for maturation:

7 Day simple interest rate after compounding at 10% daily = 94.87171%

Day	%
1	10
2	21
3	33.1
4	46.41
5	61.051
6	77.1561
7	94.87171

With waiting for maturation:
7 Day simple interest rate after compounding at 10% daily = 77.1561%

Day	%
1	10	1st day new coins are immature.
2	10	1st day new coins mature, added to interest calculation
3	21	2nd day new coins mature
4	33.1	3rd day new coins mature
5	46.41	4th day new coins mature
6	61.051	5th day new coins mature
7	77.1561	6th day new coins mature - so not included in compound interest calculation (@ 10% daily simple interest)

So if it works then you have to wonder at what point people are going to bail out and cash in their chips
And if price will decrease greater than interest received...