Because your coins is bullshit too,that is why there are no improvements,HOLDING good altcoins and tokens will give you a lot of profits but holding these shitcoins which doesnt have good working product/services wont give you anything even you waited hundreds of years.Do a lot of research find new potential coins or projects only invest to good projects,read whitepaper check the team,the current developments and im sure your holdings will give you much better outcome.