Actually, I haven't, but I've found a way in which someone could. This is a FYI for Mike really, but I'm sure others will wish to comment.
I've just changed the email address in my profile. I was prompted to enter my login password before the forum software would accept the change. No problem. I did so, clicked on submit and then the forum software told me it had de-activated my account and that I had to re-activate it from the email it had sent to my new email address.
Fair enough, but what if I had made a typo in the new email address? Account locked and no way to re-activate it.
No more LXF forums. Would I have to go back to Windows?