All of these these trendlines consider the price near the beginning of October 2010 a fundamental anchor. I don't consider such early price data to be worth much myself. The effect documented on that thread would be far more pronounced if the price history were worked backwards to February 2010.
Of course, there's nothing absolute about the line I've drawn. I've simply selected to draw a straight line though the turning point of the 2011 bear-market and the point at the base of the April 2013 bubble. Both points, marking significant changes in medium-term direction, form the basis for the best guess I have. I consider June 2012 is a little nice support and April 2011 pure coincidence.
