Assuming this is how it happened – you'll have to excuse me for not trusting MTG on her word considering she has demonstrated to have only a passing familiarity with reality in the past – it strikes me as a ridiculous thing to do by an actual KF member, and certainly isn't the kind of action from someone with the best interest of the site in mind.

I read up on the spat that lead to CF's ban a bit, and Keffals claimed to be responsible for the site's owners mom to lose her job, in spite of not being involved in her son's activities at all. Seems pretty mean-spirited, to say the least, and among other things evidence of a "the goal justify the means"-kind of mentality that I'm not a huge fan of.

No one is looking good here; KiwiFarms doesn't have a good look, but this Keffals person also doesn't come off well. She seems like an unpleasant person and while she is right to complain about KF IMHO, that doesn't mean she's the "the good guy" (or gal) in this story, or that everything she says can be trusted at face value.