[talk-au] Academic question about tags

[Bob Cameron]

On reading about OSM feature data structures

Are there ever any problems "mixing/adding" what would commonly be 
separate tags for the one entity?

eg

amenity=pub plus tourism=hotel plus shop=alcohol

highway=rest_area plus amenity=parking plus tourism=camp_site

I am thinking in terms of rendering, mkgmap or other downstream uses. I 
guess there would be an icon/avatar precedence issue but I wonder what else.

tnx