When I saw the headline here my first question was, which crypto currency? Are we now lumping all crypto currencies together, when the broad category of "crypt

When I saw the headline here my first question was, which crypto currency? Are we now lumping all crypto currencies together, when the broad category of "crypto" contains everything from Bitcoin to dogecoin to proposed ERC20 coins that only exist on paper? I too would warn everyone against using certain crypto coins for anything