From a blog piece on GamerGate:

Both followed a pattern that can be summarized by:

  1. A group, hobby, or interest consisting of mostly males (due to disinterest by females)

becomes more popular.

  1. Females begin to join in. Some out of genuine interest and some ideologues

who have ulterior motives.

  1. Ideological joiners begin to complain that women are underrepresented

due to sexism (rather than the differences in interest levels).

  1. Some original group members disagree that sexism is the cause. This

disagreement is then claimed to be proof of the sexism in a form of argument called a KafkaTrap.

  1. Tempers flare. Trolls, seeing the opportunity to create strife, send

harassment to the ideologues. These harassments are then touted as further “proof” of the sexism.

Note KafkaTrap

http://www.avoiceformen.com/gynocentrism/gamergate-vs-elevatorgate-a-comparison/