This is a welcome discussion point.  Nice to see I'm not the only one who thinks like 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.  This is quite an interesting website I found:  https://www.coincheckup.com This site did all the research for you. It's truly amazing. Check for example:  https://www.coincheckup.com/coins/Bitcoin#analysis To watch Bitcoin Analysis.