I think I must try my hands with them. Let me try with some small amount.
If even after reading thread some is willing to invest then only thing concludes is that "someone" might have already invested in gainbitcoin. And here that someone is trying to publicize mlm scam.
The smallest amount you can buy a Gain mining contract for is 1BTC, say 55,000 INR today.
However, in the MLM industry (and in some "cloudminers") it's not unknown for your upline to offer a partial share if you cannot meet the company's minimum purchase requirements.
This involves giving cash to a third party under an informal arrangement.
Smallest amount one can waste/invest is 0.1 btc
A person is supposed to create two accounts under him to get commission. One could create unlimited dummy accounts with same email id.