I was expecting this link to show up on the
Linked sidebar on the meta.gis site, but it doesn't.
Maybe this is by design. If so, then consider this a feature request. A lot of GIS questions fall more in the code review category, yet posting there for the first time is not very productive - a user lacks sufficient rep to create a new tag. This leaves tag decisions to members of the other site who have little familiarity with the tag in question. Defining boundaries between different sites really would benefit from having cross-site links appear under the