The biggest advantages bitcoin has over credit cards are the transaction fees. Credit cards typically charge 20 to 30 cents per transaction, meaning that if I were to use a credit card to send you half a cent, it would actually cost me 20.5 cents to do it. Bitcoin has very very very low transaction fees, enabling microtransactions to happen.
I will go check out your post! Did you sign up for ZapChain? We’d love to have you there.