I get the impression Coraline was confrontational. Folks like this are really hard to work with. They're also really easy to dislike.

I found this interesting:

> I wrote an impassioned piece talking about how this feature closed a security gap that had directly affected and provided an abuse vector against me

I see this "impassioned piece" as a public shaming of the company who employs her. Since her team's product manager encouraged her to write this, it makes the product manager look like a fool.

She probably caused a lot of friction among several of her co-workers and her manager just couldn't help her anymore.