Whoever is changing the variable names that the config is supposed to use, stop it! My site's captcha has now silently broken twice! You should never, ever change the name of a configuration variable. If you do end up changing it, alias the old name for the new name!
Topic on Extension talk:ConfirmEdit
Ok, what configuration variables do you mean? ;)
Yeah, ConfirmEdit is really unstable. Meanwhile it is vital for MW, which made using it become really frustrating experience.
However, my question is still unanswered :D