I was just looking at the coinmarketcap table since 2013, I was surprised in what I saw, many coins topping the charts then are now almost non-existent, we need to be careful of the kind of coins we hodl especially for long term. Most of these projects just die after the initial hype.
there are lots of shitcoins in coinmarketcap, Cmc is more concerned about the trading volume, irrespective of if the coin is having a good team or working products, so I won't be surprise if lots of coin on coinmarketcap are no longer there