Just in case you were wondering, mining for BitCoin on an Android smartphone (even on a high end device) is not feasible. So I don't think you can earn a lot from it. I personally just purchase btc for my USD via https://changehero.io/ exchange platform and wait for Bitcoin's next big price move.
Interesting scam. I don't think you are very likely to make any money fucking the members of this website. Nice try. Should I delete you from this website now or would you like to do so yourself?