In the Swedish Wikipedia, there are only 12,600 coordinates in 10,600 articles. That is only 3 percent of all articles. These numbers need to increase, and we're looking into various ways. Just before we start to add coordinates to lots of articles, some questions:
For small places, should we just add "type:landmark", or does it make sense to clarify what is a church, what is a museum, what is a statue, what is a grave, what is a remarkable tree, and so on? These types of objects could be marked with different symbols on a map, or you could select which kinds of objects you want to display. Today, GeoHack or WikiMiniAtlas don't do any of that. Is there a established procedure for adding new type values?
For villages/towns/cities, it is a custom to add type:city(9876) with the population in parenthesis. But is this supported by GeoHack or WikiMiniAtlas? Does the presentation scale (zoom level) really change with the population? Or what purpose does the population number really serve in the GeoHack URL? Translating from population to map scale can only be a rough guess, since some cities are densely packed, and others are spread out. Do we need to specify scale for each place, in addition to type (and population)?
Of the 183,000 coordinates in the German Wikipedia, some 76,000 specify the physical dimension, the diameter in metres, using the parameter "dim", for example type:city_dim:25000. It seems that this value is often one tenth of the scale parameter. Is this supported by GeoHack or WikiMiniAtlas? Is it planned to be supported in the future, or is it an old feature going away?
It is common that the coordinate template for creating the GeoHack link is called indirectly from an infobox template. In that case, the infobox template takes parameters such as lat_deg, lat_min,... In the Swedish Wikipedia, we have tended to go away from that and instead call the coordinate template directly from each article. Is one way better than the other? Is there a global trend?
How will the introduction, presumably later this year, of inline maps from OpenStreetMap, effect the questions above?