>>/14123/
I think the rise of /qa/ can only be understood as a counterculture to the rest of 4chan, which was dominated by otaku pedo neckbeards who would brag about the years they spent rotting on the site and would mock every newfag even if the newfag was a high quality poster. Soyjaks became the favorite baiting material of this movement that joined the groups of other posters like cirnoposters or sneedposters on /qa/. Soyposters WELCOMED every newfag, said "sisters" instead of "bros", loved irony, despised jannies, hated tranime etc. They did everything they could to be contrarian and not someday become the 4chan oldfags themselves. Somewhere down the line soyjaks became mostly self-insert reaction images and that's when these people started caring about the memes themselves and became 'jakkers.