I got the impression that, like me, she had not got a clue what was happening to the forum, which turns out to have been a practical joke not understood at the time by many, (including me), particularly to the General Discussion, to which she has been a stalwart contributor, and as she was also feeling somewhat down at the time, decided to leave.
The problem with the joke was, apparently, that unless you were on the forum when it happened, and picked it up a day or two later, by which time there were so many threads it was impossible to read them all, you would have thought that the whole thing had imploded, and I'm sure that this is what has upset Lizzie, as it did me, until I was enlightened.