I've noticed a few times, users poaching for other stacks and suggesting an already answered, and up-voted question should be somewhere else.
What (if anything) should we do about this?
Although I am not saying this is not the right place to ask this question, I think it might be better suited for Interpersonal Skills SE. From this stack perspective, it seems like you did everything by the book - talked to her directly, explained the problem to managers and offered all the necessary training. — Raf M. yesterday
I've seen other examples of this as of late as well.
I believe this is disrupting this stack.
Furthermore, I think it's trying to create an end-run around this: