Dave Sigafoos:
For a 'valid' id, are there any plans to have an 'image' that the user
has to enter the word. Many systems are using this method for weeding
out machine generated user requests.
It's called a "captcha", and there's an extension to do this:
http://www.mediawiki.org/wiki/Extension:ConfirmEdit
I think this currently works for edits, not user creation.
Ian