This line was missing from my ServerSettings.ini file:
ConciousnessDamageMultiplier=1.000000
Once that was in, thralls began taking proper knockout damage.
None of the players in my server are able to knockout thralls. They've reached the required levels and have the correct feats, but thralls just take regular health damage when hit with truncheons. Eventually, they just die. Am I missing a server config that manages this?
I've noticed that most of the boolean entries in my GUS.ini use a preceding "b" and some do not. I don't recall changing the entries that do not have the "b". Is that truly required for boolean entries to be read by the server?