If Nancy has said this, she has, to my knowledge, not published it. What she has said in writing (Z Magazine, July/August 1991) is she worries that a participatory economy would be susceptible to the Dictatorship of the Sociable and the Lets not Piss Anybody Off principle. Albert and I responded to both her criticisms in that same issue of Z Magazine, and on re-reading, Ill stand by our response. In a nut shell we said:
http://www.zmag.org/ParEcon/writings/hahnelanwers.htm