As talking on tools, standards and principles, I think what is vital is to follow "OSM principles":
https://wiki.openstreetmap.org/wiki/Good_practice *Don't remove tags that you don't understand* https://wiki.openstreetmap.org/wiki/How_We_Map *Do not engage in large-scale "cleanups" without securing the agreement of the relevant community or talking to the people whose work you aim to "clean".* - - - - - - - - - - - - - - - - Sérgio - http://www.openstreetmap.org/user/smaprs
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