Description
This page:
http://docs.mongodb.org/manual/applications/geospatial-indexes/
... begins with the sound advice to use a 2dsphere index with GeoJSON coordinates, and a 2d index with legacy coordinates. It then says to use a 2dsphere index with GeoJSON *or* legacy coordinates.
This is all technically accurate, but only the sages understand why. Let's make clear that 2dsphere indexes offer backwards compatibility with legacy coordinates as a convenience, but it's not really the right way to do things. As it stands now, the page appears to contradict itself.