astroturfers

Noun

astroturfer (plural astroturfers)

1. One who engages in astroturfing, the disguising of an orchestrated campaign as a “grass-roots” event.
   • Companies now use "persona management software", which multiplies the efforts of each astroturfer, creating the impression that there's major support for what a corporation or government is trying to do.2011 February 23, George Monbiot, “The need to protect the internet from 'astroturfing' grows ever more urgent”, in The Guardian