If so, you need SAP Universal ID. In a few months, SAP Universal ID will be the only option to login to SAP Community. Without it, you will lose your content and badges. If you have multiple accounts, use the Consolidation Tool to merge your content.
Not sure what happen to CMC when i am picking up "user and group" from dropdown menu in CMC it is not showing anything but a blank window, rest all options are working fine.