sell your old ETHD coins on coinexchange and buy new ETHD token one on ETherdelta
is the fastest way
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If it is a scam i will not buy anything else, stay out of this scam.
My question also be, why are the new coins so cheap? Compare the old ones....
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Because the dev is already selling they new coins he pulled out of thin air just like they old coin.  The price will continue to slowly bleed into nothing with a few deceiving spikes along the way.  Dev is selling coins slowly to take as much profit as he can on the way out.