Well these things would be a great match since who would like to know that your using your Credit Card for Porns and stuff . Well its pretty disgusting if people knew it..
Yeah right. Bitcoin will be the best way to stealth yourself from your friends or relatives and even your wife or girlfriend.
Credit cards have a transaction files where they will see where you used it unlike bitcoin. 
But they seem pretty rare though since most costumers prefer to see the model's face. 
