Simple avoid them. That could be the only solution. New projects are for them who have deep knowledge about them. Although that type of investor also get scam even after that much qualifications and knowledge. So newbies are much helpless and one step ahead of being scam from those professionals. So buy old coins which growth percentage is good since launched. Go to cmc or coingecko and pick your choice among top20/top30. Memecoins like doge, shiba are better to skip
The question is: how do you know that the project is a scam? Avoiding it is easy; what makes it difficult is what most people don't know: how to determine whether a project is indeed a scam. This is what we should teach people who don't know.
Because having the knowledge to know how to avoid it is a big factor in avoiding such scam projects and also a big help to every community that enters into crypto projects in this industry.