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.
This setting of scam had been in existence since the introduction of cryptocurrency and we need to take prior research before thinking of investing in any crypto project at all. The Crypro market is wide with lots of projects and sometimes it can be very difficult to select the right project to invest in to avoid not to end up being scammed to fraudsters.
I think investing in existing projects better for now and those who can be very skeptical of the right projects to invest in. There are promising existing projects we can hold both for long and short term before the crypto market continue the bull move.