<< (..) have proved that both too much lying and complete honesty may damage social relationships. >>
<< (..) liars play a central role in social networks, because they create new links as well as maintain the old ones, thereby connecting communities with different opinions. >>
http://www.alphagalileo.org/ViewItem.aspx?ItemId=159055&CultureCode=en
Rafael A. Barrio, Tzipe Govezensky et al. Dynamics of deceptive interactions in social networks. J. R. Soc. Interface. 6 Nov 2015 vol. 12 no. 112. doi: 10.1098/rsif.2015.0798
http://m.rsif.royalsocietypublishing.org//content/12/112/20150798