The surface "seems to be a mish-mash of questions about DirectX Surface data structures, supporting Microsoft Surface tablet computer hardware, vector algebra involving planes, and contact with the skin of an object."
Currently, it has been applied to 23 questions & has no posted guidance.
The idea of being an "expert in surfaces" (at least with respect to certain definitions) seems awkward in a way that suggests it might be meta.
So, for community discussion: is the surface tag useful, and if so, how to we want to apply it?