Bitconnect looked like a pyramid scheme from early on, and it had a ton of warning signs. If you missed the fact even a ton of people on youtube told everyone that bit connect was a scam, so you didn't even need to notice it yourself.
I want to know why people got involved while knowing that it was a HORRIBLE scam from early on?
People want to get paid! Financial freedom is the holy grail of having a half way decent life. They saw an opportunity and rolled the dice. Sometimes you win and sometimes you don't.