Because when new bull run will arrive there will be new shitcoins and your shitcoins will end dead or delisted from exchanges which can lead to 100% loss.History is always repeating.
5,5 years old chart:
Surprisingly some coins from this chart are up from then but volume on exchanges is low,so holders of these coins are truly bagholders.
Thatsm's the tendency. In the first place, it won't be called as "sh*tcoin" for no reason. These are coins which are not having price increase or market development upon being released in the market. In this market situation, no matter how huge the potential of the project is, most of the coins are resulting to nothing. Most of the cryptos are negatively influenced by the market behavior right now so maybe, it would be better to further wait for changes.5,5 years old chart:
Surprisingly some coins from this chart are up from then but volume on exchanges is low,so holders of these coins are truly bagholders.