> Crytocurrencies are effectively useless without centralized exchanges. Change my mind. https://99bitcoins.com/bitcoin/who-accepts/ https://99bitcoins.com/bit

> Crytocurrencies are effectively useless without centralized exchanges. Change my mind. https://99bitcoins.com/bitcoin/who-accepts/ https://99bitcoins.com/bitcoin/who-accepts/ > use my Dogecoin to buy dogfood. https://bitcoinist.com/doge-for-dogs-burger-king-brazil-now-accepts-dogecoin-for-dog-food/ https://bitcoinist.com/doge-for-dogs-burger-king-brazil-now-... https://imgur.com/kR1aNcP https://imgur.com/kR1aNcP ... Maybe not "Change my mind", but definitely a "Prove me wrong"