A coin must have clear fundamentals and have a clear value proposition. Does it solve any of the fundamental problems that current crypocurrencies face? If no, then no matter how high it goes, it will all be due a marketing/hype-job whose will be short lived and will leave everyone that doesn't dump on time bankrupt. This describes 99% of altcoins out there and this is the only valid analysis.
This is very true and is certainly a part of the evaluation process.
well said. What I understand is that you need to understand what this technology needs to do. Also understand what you want to do. If there is no certain practicality. That is sooner or later to collapse. To analyze what is useless coins is really not easy.