It's obviously a scam. On their website they claim to have a "heavy equiped mining farm." The specs are just below:
2 x BitForce 25 GH/s Miner
4 x BitForce 5 GH/s Miner
3 x AMD Radeon 6850
1 x AMD Radeon 7970
2 x AMD Radeon 6750
1 x X6500 FPGA Miner
So just north of 70 GH/s. Not what I'd call "heavy equiped".
Anyway, this is just a textbook Ponzi scheme. The first folks send in a small amount (the 0.01 option) and will get their 0.03. They'll of course share their story on the forum, which then triggers more people to invest and to invest larger amounts. As the thing goes on, payments are made from the money of later investments, because if the thing runs as the scammer wants it to run, the amount of investment grows exponentially, at least at the start.
And once the growth of the investment starts to go down or the desired amount of coins have been obtained, the scammer pulls the plug and bails with the coins.
So it's perfectly possible to make money investing in such a scam, just be one of the first ones to join. But by doing so you help keep the scam going and the money you make comes out of the pockets of people that are left with nothing in the end.