Because they claimed one coin was the new Bitcoin and that she and her associates took billions for “crypto”
Yes, good question and this is exactly why there are so many scams. There's such a hype that one can simply add crypto lingo to anything and people will buy into it. Not even the media bothers, once someone proclaims to be associated with "crypto" that's what they're labeled at.
It's quite common that crypto currencies have an almost religious following nowadays, but she was one of the first. Where bitcoin was propagated by tech savvy people, One Coin collected money from average Joes. They took the term 'crypto-queen' to the 'real-world'.
I never heard of her or her coin before everything went shit. Her product wasnt targetting actual crypto enthusiasts.