Using external POI data

[Cj-Malone]

How much thought have you put into using none OSM point of interest data?

I've been producing a data set of shops, it's "scraped" from there websites (only when they use structured data, and following robots.txt).

In the UK we use it as QA. Anything in OSM but not the list is probably old OSM data. Anything in the list but not in OSM is probably a shop but not mapped.

Copyright wise, it's not compatible with the ODbL, when editing OSM we need an alternative source, but I doubt any of these shops would complain if you used them as an overlay. You could probably even get explicit permission if you tried.