I can only really think of two reasons. One being it is easier to pass materials/furniture/appliances through windows that would or might not otherwise fit in doorways/hallways etc. The other would be the fear of vandalism as people know the house is empty so think it's fun to smash windows.
GiraffesOnATandem t1_j2eye2e wrote
Reply to ELI5: Why do we board up the windows of abandoned or currently renovating buildings instead of leaving the glass? by bandreasr
I can only really think of two reasons. One being it is easier to pass materials/furniture/appliances through windows that would or might not otherwise fit in doorways/hallways etc. The other would be the fear of vandalism as people know the house is empty so think it's fun to smash windows.