Less Exported Wealth = Less Migrants = More FPS.
True, but that doesn't make it not problematic.
On the bright side, apparently caravans "stealing" your stuff doesn't count for masterwork loss. I was worried that my bonecarver was going to go psycho after I turned ITEM_THIEF back on once I had ~80k exported wealth, but he didn't get any art-related unhappy thoughts.
Plus, with the current edition, your more likely to die before nobles would even appear anyway, unless of course you use something like a gigantic bridge and smush stuff.
Also, without Kobolds, whose going to steal all my stuff?
Meh, it's not that bad. I've been in the habit of building a shooting gallery entrance to my fort that is sealable at both ends since I
firstsecond played the Orc mod, and with such a construction a single markscat is usually enough to take down a full squad, and more if I've had enough space and good enough timing for the lever pulls.
Besides, it's not like goblins won't try to steal your many, many children with this mod
P.S. Im not too sure on this, but the Relentless Assault has everyone against you. Perhaps you could ask the creator of the mod to help with hostility? On the otherhand, I noticed elves didnt use unicorns to siege you in RR, so maybe he completely modded races. Eh.
I'm pretty sure RA just gave everybody BABYSNATCHER, which also makes people mindlessly hostile. Making everyone else hostile, though, is just a matter of either not giving yourself CAN_SPEAK or giving yourself UTTERANCES, both of which appear to work fine (though limit you to trade only with your own race), but sadly would prevent the use of the cat language file
Oh, and I feel I should make this explicit: turning off ITEM_THIEF after embark does solve the no-exported-wealth problem, but also made elves, humans, and dwarves come to trade with me. Turning it back on also worked fine.