Good points in this post. Interesting to see I'm not the only one that is thinking about this. Sell the coins that you know nothing about. Do proper research on any coin you buy. If the market falls at least you can hold your coins knowing they have a long term future. Personally I always use: https://www.coincheckup.com This site is really helpful in my coin research. I don't know any other sites with so much indepth analysis. For example: https://www.coincheckup.com/coins/Ripple#analysis For a complete Ripple Investment research report.