Anita Sarkeesian is the creator of the severely flawed video series Tropes vs Women in Videogames. Her videoseries explains why videogames are sexist and encourage everyday sexism from the viewpoint of a feminist pop culture critic.
There have been many cases of her being shown to be a liar, provide factually wrong examples or being generally dishonest.
Anita and her videoseries were actually unrelated to #GamerGate until journalists used her as a red herring to distract from the claims of corruption they were presented with.
Even the "Gamers are dead" articles often use the (potentially faked) harassment towards Anita as a reason to declare gamers as evil and misogynistic.
Journalists and SJWs love her since she is the main fuel for their persecution complex and she is often regarded infallible by her supports.