It does appear this way, at least in the late 80’s and most of the 90’s. Toyotas are even worse than Nissans, I had no clue Nissans were so notorious for rot. My dad had a 2000 maxima too and his had 180,000 miles on it and had none of the issues mine is having. But then again he kept his clean 24/7.
I tried snapping some pics again but I really need a camera with flash. Unfortunatly while underneath the car trying to get a picture today I realized I was incorrect yesterday, the section where the crossmember bolts to the support is indeed completly rotted out. If somebody wants to give take a shot at welding in some fresh metal for me Ill give you a few 100 bucks. I need to do something with this before it gets worse. What exactly would happen if the radiator support completly broke in half?