I fully agree that bitcoin (and crypto in general) is essentially speculation (gambling), and that a minor part of it is what state lovers would call "crime" such as money laundering and dark markets - but that's the reason why it existed in the first place: to help us finance all that which the state doesn't want us to finance ; to be able to do commerce without paying taxes, to be able to finance things like bribing politicians, buying out judges, financing subversive action and so on (and if you really want to, finance terrorism, although that's going to be counter-productive: terrorism is a boon for states).  So it is not "garbage" for that reason, it is its reason of existence.  It is the reason I was a fan of bitcoin long ago.  The main problem I have with bitcoin is exactly that it isn't really catching on for subversive action financing, but that the gambling part is taking all the place.