All of the questions are important but this one is the most important of all because if you failed to distinguish between fake projects from legit, you will end up losing everything without recovery even though you have all the knowledge above. Scammers have different strategies and you have to be aware of those when they offer you first out of nowhere. Some of the old exchanges list pump and dump coins which you really need to be careful because most of the investors failed to recognize since they were just relying on the exchanges. Always visiting in the Beginners & Help
section of the forum will minimize your risk from scammers because of the knowledge they shared there.