Before you buy cryptocurrency, know that it does not have the same protections as when you are using U.S. dollars. Also know that scammers are asking people. While you can use a credit card to purchase cryptocurrency, it is generally something that should be avoided due to the volatility that cryptocurrencies can. Benefits of Bitcoin · 1. User Autonomy. The primary draw of bitcoin for many users, and indeed one of the central tenets of cryptocurrencies more generally, is.