Better to have too many than not enough.
That is at best terrible, at worst, almost criminal. I once had to remove a Pack Rat box from the back of a TJ Unlimited to do some close-outs for the frame reinforcements. The contents filled up the drawers enough that there was no chance of violating the Rule of Boxes. We unbolted it and tried to get it out. Not moving. So, we emptied and then removed the drawers and got it out that way. I looked it up to figure out what the hell was going on. The Pack Rat weighed 300 lbs. by itself. On top of that was the biggest Pelican case I'd ever seen and it was full. There was another smaller case also full, beside those on top of the drawers was a shovel, axe, snuggled up next to a Hi-lift Jack and bolted to the rear roll bar was a 20 lb. Co2 set up. After we got the drawers out, we leaned the passenger seat forward and stored in that footwell was the spare 10 lb. Co2 tank. The reason we didn't see it at first is they had those seat covers with lots of little pockets on the back. They were stuffed so full you couldn't see down past them to the footwell. The cab looked like the inside of an airplane cockpit with all the radios, GPS, and gadgets in holders bolted, stuffed, and velcro'd everywhere. You didn't really sit in it, you sorta snuck in and wore it.
I explained that to take full advantage of his very nice build he really should put it on a diet. Okay great, install this for me please. He went over to the back of his truck and fetched up a 30 gallon safari gas tank complete with steel skid. Empty it was over 100 lbs. I pointed out that was kinda going the wrong direction since the diet I had in mind was less weight, not more. Well, I gotta do something, it only gets 9 miles to the gallon. Yes, I can see why, it weighs over 6500 lbs by my math and you just added another 350 less whatever the stock tank weighs full.
Sadly, he is not the only one I have dealt with like that. I once lifted the hood on a TJ and there was a row of Bosch style relays that went solid in a row stacked side by side touching from strut rod to strut rod at the back of the hood on the firewall pinch weld. They were used to run all his lights. He actually weighed that one and it came in at 5800 lbs.
So yes, you can have too much crap.