From the article:

So, when Dave Eggers decided to rewrite my book as his own novel about a young woman working her way up through Facebook...

It appears that Eggers’ recent pattern in his books is to take the story of the “other”— in one case a Sudanese child soldier,in the next a Katrina survivor, and now, the story of a woman in tech— and repackage them under his name. The difference is that in the first two cases he named the source of his material. In my case, because I am a woman, and therefore am subject to erasure by the media avant la lettre, that wasn’t necessary.

It is not the most concise piece of writing, I will give you that.

This context isn't in her article. But it is related. Basically she wrote a book about her experience at Facebook, and is claiming that Egger plagiarized it for his book.

(From what I can tell anyway.)