I am sorry, it should be "rounded off" and not "rounded up". I shall correct this on the website. So any number below 0.5 will be rounded down to 0.
hmmm so that probability to get "10000" should be just 0.005%.
Yes, because that is what is feasible to pay out. You gotta remember though that there is no other faucet or free bitcoin websites (that I know of) which gives you the chance to even win that much and that too using a provably fair system.