The unit-of-measure tag is currently
For questions related to conversion of units.
Should questions about the unit of measure itself be considered as relevant questions under this tag?
Edit in response to comments:
I've found another question about the dimension of radian. This is about a property of radian as a measure of angle, rather than the conversion of radian to degree. It's about a unit of measure, but it doesn't fit into the tag wiki of unit-of-measure.
Should the tag wiki be changed as a result?