What kind of topic is this? If you talk about bitcoin whether halal as using, yes it is halal if you earn it in halal way but interest is not halal in islam. Trade is halal.
i am Muslim and know so many other Muslim involved in bitcoin. i have so many Muslim friends from Pakistan, India, Saudi Arabia and so many other countries who are doing trading in bitcoin. i am sure that bitcoin and its trading is Halal. i think we should not fall in the discussion of religion related to bicoin because it created doubts it is not a good thing.