Elec-Va:
Welcome to ECN.
My opinion on removal of abandoned wiring is basically the same as yours.
We remove whatever we can to leave/have a "clean" jobsite. We do this on "most" of our jobs. IF something appears to be useful for future use, we safe-off both ends, and tag it as to location and source.
I know that the '02 addresses removal of certain/most abandoned LV cabling, but the '02 NEC has not yet been adopted here in NJ.
How many times have all or most of us "opened" a drop ceiling panel only to be faced with the rat nest of LV cable, or how many times have we had to "clean it up"??
About time! If its "abandoned", "not used", "old", "from the previous two tenants" then it should go!!!
John