With apologies, to users, KVR audio was referring bots which could crack my previous simple captcha, so a more sophisticated version is now installed. It's now also required for first-time login, as they were attempting to guess user passwords.
Because of this, I have been forced to delete some user accounts which may have been compromised, as they have been accessed from mutliple IP addresses. Please accept my apologies again if you were deleted in error.
The administrator has disabled public write access.