Are there crypto scams? yes, and plenty of them. Can you buy drugs with them? sure (and I thinks that's great!) Do either of the above statements get at the core issue here? not at all.
The issue here is not with the crypto itself. The issue here is the same issue that is regularly a problem anywhere software is deployed, digital security. The take away here is that many (all?) crypto exchanges are failing to properly secure their systems. Which is why the general rule that anybody investing in crypto should follow is never keep crypto in an exchange wallet unless you plan on trading it in the very short term. As an extension of that rule, you should never keep your crypto in a wallet that you don't hold the private keys for. If you don't have the private key for the wallet, it's not your wallet. Not your wallet, not your crypto.
In that case, the trains will double as ovens. Now that's efficiency!