I made the decision to remove the thread in question because a) it had served its purpose of informing members that Helen would no longer be moderating on the boards, but more to the point because b) I did not want the thead to descend into a war of words - these boards are provided for the discussion of trading, and I'd like very much that it continues that way. I'm still very much in communications with Helen, and I know she wishes me all the best, as I do her, in the future.
In case any members did not see Helen's original post about leaving, I've copied my response in below - I hope that this puts an end to the matter.
"I'm afraid I've spoken to Helen, and she won't be coming back (at least not in the short term). It's a most unfortunate set of circumstances, and although I'd prefer not to comment on the details I wish her all the best with her trading and her contributions to the UK trading community.