I recently noticed the tag suggestion vector-space-isomorphism which appears to have been created less than a month ago with 3 questions so far using the tag. I personally can't see any use for this tag beyond very specialised questions and think the vector-spaces or linear-algebra tags are more than sufficient for any question which might otherwise fall under this new tag.
Is the use of overly-specific tags to be discouraged? It seems to me that if this tag survives, then we'd need new tags for group/ring/module/graph/etc. isomorphisms.
Should we remove this tag or merge it with another more suitable tag?