But if they mine just to get rid of BTC i/of using them, where is the value ?
The value is a shitload of Bitcoin gets put into the community and all of a sudden the legitimacy problems with big merchants that is holding back the coin right now, will no longer be an issue, it could be the thing to not only make the coin official, but you know Google would try and regulate how fast they generate coin.
Also, they would do things by solar power or wind
