It's not the scepticism that suggests astroturfing; rather, it's the nature of the posts and comments. See my response above. Simply arguing against AGW doesn't

It's not the scepticism that suggests astroturfing; rather, it's the nature of the posts and comments. See my response above. Simply arguing against AGW doesn't make one an astroturfer: repeatedly posting nontechnical articles in order to further a political agenda makes one an astroturfer.