I work at Sears and sell appliances. The "horror story" about the DUmmie's fridge was probably either delivery induced or owner induced. They always like to blame us salesmen for other areas of problems. Hell, all we do is sale the damned appliance and arrange delivery. Folks seem to think were omnipotent because they call us for every little problem!! And......... if they didn't buy the Protection Agreement, any problems after a year are moot, anyways.
If the Dummie's floor is that weak, then there are bigger problems than just "reinforcing" that one area. I'll be waiting to read where they fell through the floor in another area of the house !!