Judging by the hashtags (#hotosm-project-2360 #OSMZambi) on some of the original changesets this was added as part of a task on Tasking Manager. I don’t know if any evidence of the details behind this activity are documented anywhere. It may be worth trying to contact some of the original mappers to ascertain the project goals.

I have seen well-meaning mapping of private toilet facilities elsewhere in the world: usually as part of efforts to collect statistics related to socioeconomic status in poor urban areas. Whilst the collection and use of such statistics can be important for a whole range of interventions, it is not clear to me that information which can be directly related to individuals should be entered in OSM.

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