I have a personal experience, a friend and a mentor told me about a new project that was looking very promising, he advised that I invest in it. So, I did even without doing my little investigating, not too long, the dev pulled out liquidity and that was the end of the road for the project.
Besides developers, you should also be careful with mentors and friends who advise you investing in scam projects. Be careful on who you trust in crypto market. Sometimes people say they are experts and professionals on this industry to build their reputation inside Telegram, Discord groups or Youtube channels, but their knowledge and yours are at the same level. So, make sure to search for further informations about the projects you are interested in by yourself. There is no problem in asking advices to others, but always study it by yourself first, at least the basics, and ask to trustworthy investors your doubts.