No Ron, we’ve been burned before. Developing an association takes a lot of my (or Andrew’s or Csaba’s) time and a lot of time from local volunteers. Reworking dodgy listings later on takes even more time.
Typically those global maps rely on SRTM. RADAR DEMs have various problems which is why we like to cross-check our analysis results with a map. When the map is itself derived from the same imperfect DEM it doesn’t add anything.
Mapping agencies don’t do so much hacking through the jungle but they do fly LIDAR or photogrammetry programmes and base their maps on those. The trouble is many are quite protective of their products or just plain ineffective at presenting them to the public.
We get a stream of enquiries about adding associations and we should really make it clear that a condition is access to trusted mapping resources.