Well... if they didn't put everything in one coin they would be fine.
Bitconnect had an amazing advertisement and it was working like a giant scam machine because of it. it's a great example of a fast-growing cryptocurrency just on Fomo.
I even regret not buying a few tokens at the very beginning to sell them in a couple of months. I'm surprised that it lasted exactly for one year, as I've predicted hmm...

Even though I feel bad for people who lost their money, but they were constantly warned. And it was enough time to leave when the stakes were already too high.