I haven't but I'm already intrigued. I think part of it is genre. I was an Elinor Brent-Dyer fan as a child and I always enjoyed her illness episodes and been a little disappointed that nothing similar occurred at Hogwarts.

I also think that there are some ideas that will quite naturally occur to more than one person. We're working within the very narrow confines of known canon and sometimes a particular interpretation will just work. It's a very medieval concept of composition.