As you may know, Bitconnect was a ponzi scheme, a pyramid scheme. It rewarded some individuals who were at the top of the pyramid and the ones who were referring the system to other newcomers. By doing this, some individuals who had great exposure in social media (youtube, twitter, facebook, etc.) made a lot of money by promoting the scam to other users.
Nice exit scam. Many people were talking about bitconnect people they exited the scma