Well, it is good on one side for the people who loves bitcoins as a currency. But for the ones who loves it because of the profit it can provide, I don't think so. This is a huge step for bitcoin and all the other cryoto currencies out there because this just means that they are doing ways to make bitcoins legal and be accepted. Although the word "taxing" is quite scarry, i think they mean taxing bitcoins when you turn them into fiat. I mean, if they don't, there would be no way that people will be telling the truth to wether they possess any crypto currencies or not.