I only know that she has left, and in her post she didn't say much as to why, though some people can speculate and imagine why.
Quite a few days ago (last weekend I think) there were threads that pinpointed the lack of consideration that MNHQ has toward the sort of trolls that infest the FS section from time to time - different in nature and purpose to your average troll that infects MN from time to time.
It may well be that d. is in contact with regular posters whom she trusts. I don't know.
What I do know is that d. was a fabulous source of invigoration and illumination to a lot of posters, myself included, though we didn't always agree with her.
I would like a review from MNHQ of their current "talk guidlines" policy, in order that the FS is provided with a consideration that recognises the particular vulnerability that it experiences.
D. left for her own reasons - but this presents itself as a sort of 'test case' for MN to respond sensitively.
Would anyone agree and post here in support of this?