Another great piece Macris. I've run with the abductions of players before, it can get pretty crazy.
Currently in a thursday game, a dm has designed his own world, which we are playing in. He just loves to run with the suggestions and build the world around the players. E.g. the word swag to denote loot, comes from the many looting adventuring groups which have headed into the ruined city-states of Swagia. The reasons behind our actions are expanded, the frontiers are growing from our experience, a new condition which you don't quite get in a pre-generated world adhered to with a sense of orthodoxy.