The analytics-users posix group contains only 6 users, and it was meant to provide ssh access only to stat100x (no PII access). This use case seems not really needed anymore, people should be able to just use analytics-privatedata-users without kerberos.
analytics-users: gid: 7080 description: Gives generic client access to the Analytics cluster via stat100x. If a user is added to this group it should not need to be in researchers or analytics-privatedata-users. In case of doubt, please ask to the Analytics team. More info https://wikitech.wikimedia.org/wiki/Analytics/Data_access#Access_Groups members: [debt, jdittrich, kharlan, brion, mhurd, santhosh]
Let's follow up with users to see if they need the access.