Agreed with all of the above. Slight topic drift follows...
I've never bought or sold a Bitcoin, because they don't seem to offer any use case that I care about.
Certainly not investment. Not even under the banner of "speculation" -- that's not in my temperament (I don't like playing with the highly volatile)
And not money-laundering either. What little money I do possess is sparkling clean, and not in need of any laundering.
But, is the following a useful use-case for Bitcoin?
Can you use Bitcoin useful as an interim currency to send money between family members in different countries? The sender would buy bit-coin in say dollars, send it electronically to the receiver, who would almost immediately sell it in euros, say. The Bitcoins would be held for a short enough time that hopefully the volatility would not be an unacceptable risk. Perhaps just minutes.
I would be interested in that use model, perhaps. I don't care about anonymity per-se, as the transfers would all be legal and well within regulatory limits. But, purely as a way to avoid dealing with foreign-exchange departments in banks, which I can tell you from experience are VERY very slow, complicated, and expensive. Seems like a Bitcoin-based transfer would essentially be self-directed, with nobody other than the sender and receiver having to play an active role.