I think its time to ban new altcoins from coming in, there should be a limit on how many altcoins there should be per year
so that people can actually profit from investing in altcoin.
And who is going to do the banning? The code for bitcoin and most alts is open source, and anyone can take the code and tweak it and make their own coins. And any customer can CHOOSE to buy those coins. Free market, isn't it?
You're totally right,the OP might not know what is the cryotocurrency and what is the meaning of decentralizatuon.
Any one in this world can create their own coins if they want and there are lots of coins introduced to the cryotocurrency market everyday but not all the coins will stay here,only the best coin will hold on and the shit coins will fade away in months or years.So if OP want to get profit from investing on cryotocurrency you need to pick the right coins bro.