That is a pretty bold assertion to say that purchases from bitcoin are going to be retained as bitcoin, but surely remains somewhat vague in terms of how long such a policy/practice might last - 6 months?  6 years?  some other timeline to perhaps reconsider such policy?  Of course, any company, such as Tesla, is going to retain discretion to change its policies/practices at any time regarding what it is able to do.. and sure any public company will be a bit more limited in being whimsical, especially if they make a statement about finances and then later might change its position about its finances it may well have some obligations to justify its change in policy/practices if it could be inferred that their announcements could be read as engaging in market manipulation attempts.