User matmarex (Bartosz Dziewoński) is a WMF employee in the Editing team and has been with us since at least 2015. Here is his initial access request: T119404#1829716
He has been a memeber of analytics-privatedata-users group since January 2021 (T268801) and prior to that he was in the researchers group, with approval recorded here: T119404#1870536
Whilst he has been a superset user for some time, he does not yet have a kerberos principal so has not been able to use the CLI based tools to access the analytics data.
This was uncovered in a discussion on slack (relating to a query that had stopped working) and it was agreed that a kerberos pricipal for Bartosz would be appropriate.
I will add the principal now.