Well, defining overlapping rooms for every armor stand and marking each with TIQ made some sort of difference. Shields and armor were hung on the stands. And off-duty dwarves seemed to be at least partly kitted out because when I set them inactive for manpower, my fort came to a standstill as they all went to drop off their stuff in the barracks. And even though the dwarves were being more responsible about their stuff, their weapons and armor still showed up for trade. It was a small fort with few items, so it had to be their gear because other weapons and armor didn't exist.
That's all I got because other things happened that presented an option to me: Delete and start over, or take an axe to my laptop. My fifteen-dwarf fort, part of a large and vibrant civilization, got a queen less than a year in. She wasn't satisfied with her rooms no matter how many lead statues I stuffed them with, because that's all I had, and she kept saying I wasn't meeting her production edicts, even though I was. Then I got invaded, and since the squad-move-station just doesn't work -- My last fort I had 41 dwarves who were legendary+5 in discipline and twenty of them got slaughtered by clowns because they either jumped the gun or wandered off to move a trinket from one stockpile to another -- I made burrows at my defensive choke points, set the squads to defend burrows, and activated the alerts, at which point EVERYBODY turned into civilians and wandered off. Luckily the invaders wandered off as well, so I turned off the alerts, deleted the alerts and the burrows since starting fresh seems to be a necessary step for every problem I have, and EVERYBODY donned their military kit and stood around defending burrows that didn't exist. So I disbanded the squads, and I guess they were heartbroken that they had to turn in their regimental neckties or something, because they just stopped working. I hope it hurt when their universe got deleted, because they are bastards.
I hate this game so much.