That's true, but that is because these people are also not "users" of the coin, but just gamblers, eh, investors in the coin.  In other words, they don't use the coin as a currency (like bitcoin) or to set up a genuine contract, say, renting a bike (like ethereum), they are only interested in the coin increasing its market price (or in it decreasing its market price when shortable).
These gamblers (most of the crypto volume and market cap actually) don't even need a block chain: they only need IOU on the web sites of exchanges.