If I invest in a popular project does that make my money safe from scams or popular projects can turn to scam as well?
What popular project are you referring to? Is it a project that has been listed on the stock exchange, or is it still in the development stage. Popular is not a guarantee of scam or trust, but popular brings one step more success than unpopular. For example, Terra is a popular project, but we can see what Terra has been up to so far. That is, popular is not a guarantee of a trust.