Researching about the projects is really the first thing that you should do before investing your money because there are chances that you no one really know about it, so it is probably a scam or a fraud. Asking questions to other people or experts is also helpful because they have more experienced when it comes investing in a coin.
just researching now, is not enough to see whether the project you are investing is worthy or not, many fraud projects, are now smart at looking for loopholes, I think, if there is a third party who will help us in choosing IEO or ICO it seems like a good thing