Because most people still have very high levels of greed, I think that the best that could be offered here is probably carefully and slowly look through the projects, because this is the only way not to fall into the hands of scammers.
Even good projects on the paper can turn into scam. So, nowadays, it is very difficult to find out if project is scam or not. Of course, every investor should look carefully though the project, but, unfortunately, it is not guaranteed, that project will keep their promises in the future