Humans are greedy and lazy by nature ! everyone's dream is to put some money into these investment websites like bitconnect or its similars , cloud mining ,basically anything that can make them money consistently without any effort.that's why these schemes will never end 
I'm totally agree with you. Humans are too lazy to do their own research, they tend to put some money in Ponzi scheme and wait for the Lambo. They don't even think, that all the Ponzis are simply scams. It is simply lazy human nature.