After reading this post I checked my own note and recorded the balance and then came back the next day to see if it had changed - and it had increased so I'm getting the APR daily.
Are you sure you saved down the exact amount on one day and then checked it again after a day or two?
I checked again today and I see that I received some sats during the night. However, excepting today (when the daily stake was added), during past days I checked too and for several days I did not notice any change of the balance... Apparently, this problem was
also encountered by fillippone.
I can confirm that my leftovers on Whirlwind are still exactly the same after my last withdrawal.
I should expect to receive something like 15 satoshi daily, but I don't receive any.
I am puzzled by the situation.
Not that 15 daily satoshi bothers me, rather I would like to know exactely how the reward work, as I received the payments in due amount and time until my first withdrawal.