The wiki is hugely anecdotal beyond all reason, poorly written, often incoherent and their editorial guidelines clearly show that they have virtually no standard as long as the content fits under a vaguely feminist or social justice-oriented perspective.
(http://geekfeminism.wikia.com/wiki/Meta:Editorial_guidelines)
Their "vision of intersectional feminism" is postmodernism gone wrong.
Pointing out bad and illegitimate sources is not an ad hominem.
In any event, your first article isn't even relevant to the original poster.
The second doesn't even address any argument, it just moves the goalposts into an issue of patriarchal values and how all women are (ostensibly) inherently oppressed from conception.
That was most certainly an ad hominem. It was an attempt to counter a point by attacking the messenger, not the argument. Textbook, really.
That said, the Geek Feminism Wiki is a specific website which can be shown to be credible or not.