[bocklund]

Specific tags are good to carve out communities as they really are in academia.

I work in materials science, which there is a tag for, but I work in a super narrow slice of materials (it’s a broad field) and I imagine many others are the same. Even on a list of about 10 journals I keep RSS feeds for, I have a hit rate (of a paper I will read) if no better than 10%. And these are journals that I have already selected as “my flavor” of materials.

Specific tags are bad in that they could harm discoverability. It would be neat if the tags could be hierarchical. E.g. a tag for quantum mechanics shows up in materials science and physics so that the discoverability is there from the general tags, but the narrow slices are available as a filter.