Good post. Really appreciate you bring this to our attention. 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. This is quite an interesting website I found: 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/FirstBlood#analysis For a complete FirstBlood Analysis.