A friend of mine is somehow able to exploit this to expand very rapidly
Treytor, Your freind is playing as a TEC Rebel, and is researching TruceAmounstRogues, a tier 4 tech with 2 prerequisites in the Diplomacy tree. (It gives immunity to all neutral militia, and pirate raids)!
To learn your freinds secrets, turn on autorecording (in Replays), and watch replays of what he is doing.
BTW, this was a very old thread that you dredged up.