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The bull run will surely expose all of them, trust me, some of them are smart enough to understand this and that is why they are trying every means to fool making unrealistic promises in order to dump on you.
My candid advice, before you invest in a project ask yourself;
1. What are the benefits of this project to the world and the future?
2. In the next 2 to 3 years, will the working product still be relevant?
3. Who is the targetted audience? Do the targetted audience really need this innovation?
Usage and it's purpose should be high in the list if you are going to invest in any coins, all the coins that are already and doing well in the market have established these criteria, so it's better to invest on coins that are on top of the market than making a gamble on a new coin, of course it pays to be an early bird but the project should prove itself first.