i think it's important to protect new cryptocurrency fans on some information like dead and inactive coins as every day new coins are pumping into blockchain market.
here this link will help you identify many dead and inactive coins, so you can avoid being losing your funds
https://deadcoins.com and anyone have more to be added can let us know.
That is why we people must know when time to join and get our from market. I have friend who always take a big risk, buy low volume coin in market, even sometime his coin only be junk, but sometime it can give big profit because he said when market announce to delist some coins, it will get pumped.