You didnt search then.
Bitconnect is a well known ponzi scheme in the crypto community. Its trading of its coin is kept to as few exchanges as possible to manipulate and control its stats and its a joke that will crumble when they cant pay out eventually.
If it wasnt a ponzi everyone in their mother would talk about it, because look at its growth rate. But when you realize what it is, you wont touch it with a 10 ft pole, because it could collapse into nothing at any given moment. Like 10 days ago they just dropped their marketcap by like 500million out of fucking nowhere with some lame excuse. Go check the marketcap chart to see it.
Ridiculous. Stay away.
It's a ponzi scheme for sure, but we can't understand how its price was pumped this much. From the january 2017, until now, there is sharp value inflation in its price and this is very interesting for such ponzi scheme. That's the point.