Is the payout on this really 0.00019867 BTC?  I did the math and, based on those figures, I did the following calculation:

(Sorry of these calcuations are wrong, I based it on 0.00019867 BTC per payout and .76 hours per payout (which is what my browser is generating now))

0.00019867 BTC per payout
0.76 hours to earn a payout
1.315789474 Payouts per hour
0.000150989 BTC per hour
3825.43917 Hours to earn 1 BTC
159.3932988 Days to earn 1 BTC
5.313109959 Months to earn 1 BTC

And as long as I'm at it I might as well add

0.006273789 BTC per 24 Hours
956.3597926 People needed on your site 24 hours straight to earn you 6 BTC/Day
8.7136E-05 BTC per 20 mins
68857.90507 People needed on your site for 20mins each, to earn you 6 BTC/Day