This really applies with everything else in life. Scammers exists outside of crypto as well, where there is opportunity to make money - scammers will be watching from the corner. But as people think that it is easy to flip money with crypto and as they chase some dream of being rich quick then it is easy to fool them and sell them some "tokens". People should always investigate before investing into anything, because if you invest into something based on other people opinions - then you are in trouble for not understanding and knowing how does the thing work. You have to do your on proper research yourself.