I would like to propose that Esri migrate the current ecosystem of tagging from a single tag to a key:value definition format similar to Amazon AWS and MS Azure resourcing model. There are a couple of reasons why a key:value tagging schema would be more desirable :
- Improved ROI/TCO reporting at a project/department/etc level
- More robust and powerful Dynamic Text capabilities with Map Series Page
- Improved taxonomy across Esri AGOL/Portal items
Thanks for your consideration.