this is not gambling, not mining or faucet
its a simple HYIP disguised as a mining
the sites like that are very popular in Russia and CIS countries
it is very cheap, the script costs like 10$ +hosting + the funds you spend on spamming links everywhere
and it is working sa any average pyramide would, the first ones to "invest" get paid from the money of the new comers
till there are no more to sign up, thats when this site closes and admin runs away with the money , having paid out like 50-70% of the total invested (depending on the admin's greed)
nothing to discuss or look for here, unless you want to risk 10$ or so to see how it is working , whic I do not advise you to do
p.s. oh there is some faucet too, to keep you busy claiming pennies, but the main profit comes from the ponzi "mining"