Repair/refill salt licks with nitre and/or salt
Currently salt licks is that one structure that can degrade without a repair option.
This may even make it more expensive as the other material being wood, but it's a QoL.
The effort of using salt licks is inferior to feeding the beefalo which does not serve the item's purpose of leaving beefalo behind for a while.
Personal would like to see an increase on usage too, seeing that nitre or salt are not mass-producible or relocatable for production.