Regarding tip no. 4, that is also one of my factor that I consider whenever I choose a coin but when a certain topic about it are discussed here in the forum like ico ratings are being paid so that they will have a high rating. I became skeptical now whenever I see a 5/5 rating. So in result, I end to focus more on their roadmap and try to determine if it is achievable or not. That is one of my basis now.