We currently have:
- 1,366 questions tagged only as labeling
- 10 questions tagged only as label-expression
- 9 questions tagged as both labeling and label-expression
Label expressions in various products can be written using various languages/parsers that are usually tagged on questions about writing them.
I think questions about labelling using an expression are best tagged with labeling and another tag for the language/parser used to write that expression, and I propose making the label-expression tag a synonym of the labeling tag.