Population
From Barbarians of Gor
For most things, including population, we follow the rule of WYSIWYG which means "What you see is what you get". Consequently, the population of New Sardar is directly related to the number of hostile NPCs, NPC thralls and players found in the game world. All players may count their fictional clan size to include themselves, their actual player clan members, and any human thralls the clan members have, including those on crafting benches.
NPCs
We feel that with the mechanics of the NPCs and their limit cap that the actual NPCs in game are the best and only viable option for the use of NPCs in our role-play. While I'm sure no one will mind hand waving the occasional slave at the local drinking establishment, all NPCs should be physically represented by in game thralls.