The term didn’t really take off and become weaponized, however, until the growing resentment of “outsiders” and indie games that would culminate in Gamergate, after which it was retroactively applied with vitriol to games released much earlier like Dear Esther (originally 2008) and To the Moon (2011) (Clark 2017)
Mainstream game companies slammed indie game companies for their format of having walking as an instrumental part of game play. Mainstream companies still use walking as a big part of their games in order to advance the plot even if they have other aspects in gameplay. Mainstream companies did not want to compete with indie games, so they made indie games undesirable to be played because they portrayed them as not games.