Alright, I'm back! And I have a new rule:
Remember NPCs. NPCs can be enslaved, killed, pillaged and all other atrocities you can think of without prior consent. This gives us a pool to draw from and add to without debates like the Boerd/Raptor thing. Maybe Raptor or Boerd can make a NPC race they can both enslave! What fun!
This does mean to do something with Sentient beings, you need to ask the owner. And if you make a NPC, be aware it is open to everyone - anyone can encounter a member of that race without your consent.
Also remember the "Empire" idea - A NPC you spawned is yours. If you make a nation out of NPCs, they are yours to play about with and yours only. Also, if you have given consent and allow a race to dwell in a nation that is not yours, the nation-owner has rights over the race-owner when it comes to members of that race in his nation. But he cannot change their personalities.
Example: Naqar are Sentient. Gretchin are NPC.
The Gretchin can be used by anyone, live anywhere and have any personality.
However, Nation X is owned by User Y. No-one may RP as a Gretchin that Y has spawned. If Gretchin do not naturally occur in X, no-one can RP as a Gretchin who lives in X without Y's consent.
Naqar are owned by Haz. You must ask Haz's permission before you put the Naqar in your nation's demographics.
But, if you DO have permission, you can spawn a Naqar in your nation, and you have control over them - Haz can protest, but as long as there is no godmodding (eg. causing a Naqar to give away vital secrets about Naqah's defenses), they are yours. But any Naqar Haz or any other player spawns will not be yours to control.
I will put up two NPC races from tattered empires. Feel free to mess them up as much as you like.
How does that sound?