Take glue for instance. That tag is fine on it's own but would it be better or make more sense if it was glues. The ways I could support this would be:
- The tag is not about one "glue" but more the category of all adhesives or "glues"
- If the plural was in place it would not be any harder to find. If someone tried to use glue it would autocomplete to glues as answered here
I am more trying to make a case for glues here. Not all word pluralize well and some work just find as it like paper. papers seems wrong.
glue
andadhesive
should be synonyms, but it hasn't come up yet. – user24 May 1 '16 at 23:35