tried this again today and it seemed a little weird..
it was on 0.0025 and then it says "push your coins to 0.01 by clicking on ads", etc... so i did that and eventually it showed 0.01
so then, i entered my bitcoin address and hit enter.
i suppose at that point, most people would close the window, but i left it open as the count down still continued.
when the countdown got to 0, the "Your coins" went from 0.01 to 0.005
i wonder how much i'll receive.