Each investor has set of different rules before investing in altcoins, general rules can be applied on most cases. Checking the project itself, white paper and team members are must be done category, investors have to check feedbacks of other users sometimes. Depending on the amount people do weird DYI research but the benefits of making more research can't go wrong usually. Having a nice trading setup doesn't mean the trader is going to print $ all day, the proper trading strategy plus experience on this field plus money management are ingredients for successful trading history, in my opinion.
with different methode from each investors, we will find best result that take from several insight. analisys become more objective and maybe each other will find advantages and its disadvantages. with collaboration between two or more people will find new projects that have great utility and product they want build. and finally group chat will take important rules in this discussion.