archive bulk users
One answer
See https://jazz.net/help-dev/clm/topic/com.ibm.jazz.install.doc/topics/r_repotools_archiveuser.html
Comments
You can script the users into the call. Another way would be your own automation e.g.based on https://rsjazz.wordpress.com/2012/10/12/changing-the-jazz-user-id-using-the-rtc-plain-java-client-libraries/ or https://rsjazz.wordpress.com/2013/01/08/maintaing-user-photos-with-the-plain-java-client-libraries/ and instead calling the archive API.