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 very simple first step on how to avoid being screwed over the net is at least search a lil bit about the project.
Because in today's internet, you can practically search for anything. So you can already get a lot of feedbacks or reviews on a certain topic.
As to move forward, at least give yourself a lil bit of time to assess the project itself and not driven by the fud surrounding it.
A lot of people are jumping on the hype because they believe they will also have the same fate of earning profits as claimed by others.
Truly your points are valid on a conducting a thorough research through the internet to validate the credibility of some those projects, however some of those scam project developers hired some social media promoters to advertise and promote their project to look real, they wrote all sort of positive reviews and got posted on the internet al the social media Telegram, Twitter, Facebook etc contain some positive reviews about the project however in the long run the project ended up as scam, so it takes a lot effort, research and enquires to find legitimate and credible projects and avoid projects that promise huge and massive returns within a shortest period of time.