The only way to stop scams is to stop investing in them and warning as many people as you can via the usual methods like the scam section of this forum and through telegram groups etc. and this will help inform those who aren't aware of these illegitimate projects
Yes a thread or discussion about scams that lurks the internet can help all of us to avoid scam projects but we can't just rely on that for not all of your questions can be found in those things, we should learn how to analyze a project, how to do some research about it so that we can figure out if the project will be a good ome and not a scam one. Knowledge is power and the only thing that we can trust here in crypto space is ourselves so making ourselves better is a must.