I'm in charge of a new community wiki. The previous community site did not need a login.
Registrations and random passwords being sent by email can confuse new users.
What is the best way of avoiding the users list from accumulating too many duplicate logins? In the user manager it is easy to spot the duplicates by the email addresses, but not so easy to see which one(s) are being used most recently, in order to prune the list just to the correct ones.