Rug pull scams "pumping up" a new project, nonfungible token (NFT) or coin to get funding. After the scammers get the money, they disappear with it. The coding for these investments prevents people from selling the bitcoin after purchase, so investors are left with a valueless investment.
Scammers will never stop. They will always trying to did fake pump to fool others. Im seeing so many projects have become scam. They will be coming back again with the new scam project used different name and plagiarize whitepaper. Investors must be careful with it in this case.
It's hard to identify which project that created by scammers or not. That's why a deeply research is actually needed.