Does anyone else question Zynga's growth model? http://www.fool.com/investing/general/2012/03/21/welcome-to-zyngas-downward-spiral.aspx http://www.fool.com/inve

Does anyone else question Zynga's growth model? http://www.fool.com/investing/general/2012/03/21/welcome-to-zyngas-downward-spiral.aspx http://www.fool.com/investing/general/2012/03/21/welcome-to-...