A 'sock-puppet' on a message board that is not very active and remains low profile over many months. At a key moment on a debate, this 'mole' can be deployed to support the puppet master's argument without arousing any suspicion. They have a history that doesn't support any.
When Sidhe returned to the dirtybutrational.org website and was suddenly supported by other members, none of his detractors suspected any were a 'mole puppet.' He had established several way back, and used them sparingly to reply on various threads.
by Recursive Prophet August 28, 2011