trollery

From troll +‎ -ery.

trollery (uncountable)

1. (Internet slang) Online behavior that is deliberately provocative or disruptive.
   • 2009 March 23, Clive Thomspon, “Clive Thompson on the Taming of Comment Trolls”, in Wired:

     Readers can set their filters so they see only comments with high ratings—and trollery effectively vanishes.