When the setting 'full name required' is on the anonymizer was trying to set the user name to nil and this caused the user name and email to remain not anonymized.
Now in this scenario the user name is set to the anonimized username and the email is anonymized correctly.
As it stands we load up user records quite frequently on the topic pages,
this in turn pulls all the columns for the users being selected, just to
discard them after they are loaded
New structure keeps all options in a discrete table, this is better organised
and allows us to easily add more column without worrying about bloating the
user table
