She never sold her fic and so if she used a few lines or even paragraphs from other source material to put together an amusing story why should anyone give a fuck?

Because we're fanfic writers, and our words are our currency. I don't give a fuck if it's been one month or ten years, if someone decided to make their rep by stealing my writing, I would hope they'd get tarred with the plagiarist brush for decades to come.

But calling her a fattie is out of line. It's not about her weight, it's about the fact that she's a thief.