Based on the comment-dialog
Create a link in the Domainmodel so you can count the number of bugs logged. Create a Microflow that will "count" the bugs and either maintain the value inside the userrecord or use a virtual atribute in the userrecord.
Assuming you dont want to keep track of the actual changes in status (which would require additional objects in DM) create an Enum that reflects the possible ratings. And use that enum and or the bugs=reported count to show your users Rating.
Does that make sense to you ?