Jake told me that we were getting a lot of bot account requests causing email notification spam.
I have disabled the ConfirmAccount plugin and instead restricted new account creation on the wiki to existing users.
Any existing user can go here:
https://sudoroom.org/wiki/Special:CreateAccount
and create an account for a new user. If you check the "use a temporary random password" then they will be prompted to set their own password on first login.
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marc/juul