Should map-creation be a synonym of cartography? There are three questions tagged cartography and two tagged map-creation. They mean the same thing, one is just a specialized term and the other is laymen's speech. So I think they should be synonyms.
I think there are differences but not enough to make much difference without causing a lot of confusion.
I think there are some subtle differences, I think map creation is about drawing maps from a designed world. Whereas cartography is about the design of how the maps and coordinate systems work.
For example if I was to ask about implementing a coordinate system based on bearing and distance to a particular point that's cartography. If I wanted to know how to represent a church on my map that's map building.
I've actually changed my mind since beginning this post. While I think there is a a difference I think these distinctions are probably too subtle and would simply cause confusion.
I would merge them because although there are minor differences I think it would be more valuable to have all the map type questions together.