The documentation at Use the deployer to distribute apps and configuration updates
speaks quite a bit about the deployer deploying users information -
$SPLUNK_HOME/etc/shcluster/
apps/
<app-name>/
<app-name>/
...
users/
Is this feature being used as we usually speak about the deployer in the context of apps?
I guess the following explains it in the url from above -
-- If you change a single file in the users directory, the deployer redeploys the entire users tarball to the captain. This is because the users directory is typically modified and redeployed only during upgrade or migration, unlike the apps directory, which might see regular updates during the lifetime of the cluster.