My own theory, which yesterday confimed - at least in my mind - is that this is all about Iran IMO any coins that could be linked to Iran/IRGC have been dumped to avoid possible sanctions (i.e. tainted coins), buy weapons, resources, etc.. OFC not only Iran was selling, but it explains the feeling of constant sell pressure even at obvious support levels and it being quite BTC specific(Alistair Milne)