Actually this is already happening:Although, it's enterprising muggers dropping a pokemone lure which tells local games where it is ...the gamers turn up and get mugged at gunpoint :)
http://www.theregister.co.uk/2016/07/10/teen_thugs_lure_rob_pokemon_go_gamers/
(http://www.theregister.co.uk/2016/07/10/teen_thugs_lure_rob_pokemon_go_gamers/
DinivanX Has stinging piss after drinking Pact Coffee,
Mon 11 Jul 2016, 10:52,
archived)