This question was prompted by this one and I was wondering who if anyone has the required score in the tag to request the synonym. I checked the tags of some likely suspects but came up empty. I'm wondering if there's a specific moderator tool that would answer this question.
If you got to a tag's info tab there is a sidebar for the "top answerers" in that tag:
it doesn't tell you each person's outright score, but it will show you who can suggest synonyms (most likely, anyway).