A couple of hours ago on FB, "Chrissy" posted a picture of a horse and made some inappropriate comments (no, not that Stacey looked like one).
Sadly its been removed, but at least 10 people reacted to it.
There are two possibilities (well 3 but the 3rd is unlikely):
1) Some dastardly hacker figured out Chrissy's password, logged in and posted it. This seems slightly unlikely since you'd think Chrissy would have 2FA, rather than sweet FA and if anyone was going to do it, they would have gone nuclear on him.
2) The account was left logged in on a device someone in the household could access. My pick is ULD. It was comical and makes sense that it is something someone in her situation might say and do. Other suspects include NVB who chrissy repeatedly claims is a genius.
3) Chrissy did it himself. This makes little sense since it was insulting to him, and would only make sense if it he was looking for pity or in the middle of some sort of episode.