my comment on one of those BitConnect posts about a week ago...
tread carefully, sounds just like HYIP to me...
A high-yield investment program (HYIP) is a type of Ponzi scheme, an investment scam that promises unsustainably high return on investment by paying previous investors with the money invested by new investors. -- wikipedia
HYIP BitConnect.co "investment stats": http://www.hyip.biz/details/bitconnect.co
BitcoinTalk Thread: So You Want to Invest in an HYIP/Ponzi Program?