I still don't get how this thing works...
It's easy, you buy a bounty, if someone buys it then you win your money + a profit. So its about guessing what the risk is worth to the next person. It's pretty fun and if you do it right your losses will be minimal. Right now it seems like people are just flaming it because they lost and they dont understand that the point of gambling is to risk with the possibility of taking a loss. I've lost a few BTC but i've gained more than i've lost so i've taken a profit.
1.2x is the least risk for the least reward
2x is the highest risk for the biggest reward
the multipliers also dictate the increase of the next bounty in the tier.
For instance. a 5LTC bounty at 1.2x will rise to 6LTC for the next buy
EDIT: Looks like i won another .2 BTC since the post before this one. So yeah... it's not a scam