Yen Quest
Gentlemanly Swindler
Bit coins are a type of currency that many places accept for goods and services both digital and physical and it can be exchanged for real money. GC and Gold are both exclusive to Gaia Online and are completely worthless outside of our fictional economy. I don't think they are remotely comparable.
Sorry, I still don't see what's so unique about it other than it being a universal type of currency between multiple websites. I mean, the general rule of dumb, we're not allowed to trade whatever is on this site for whatever thing on another website, after all. Bitcoin might allow that to work, since it's a currency that can be used on multiple websites, but I rather we just stick it to the plain ol' real life dollars.
You can't turn gold/GC back into money though. Or back into BitCoins. They also aren't deciding PayPal
or BitCoin, they are asking if anyone would use a new payment method. This wouldn't affect your ability to purchase GC how ever you already go about doing so, this would simply allow people another option in how they want to pay for GC purchases, potentially one for people who can't use PayPal/credit cards. People who don't have bank accounts were able to purchase Ultimate Game Cards at stores and it was a fairly popular option, if memory serves. The company that offered them eventually closed so it's no longer available but it was very useful for a lot of folks while it lasted. That's all this is, another option for people.