Background: I recently moved into an apartment building in Canada (built in 1969). I don't know much about the electrical code, how grand-fathering works within it, etc., but I have an intermediate knowledge of household wiring.
Out of curiosity, I used a typical 3 light receptacle tester to double check the outlets. To my surprise, 7 of them had hot-neutral reversed. This didn't worry me much, because all of the devices I had plugged into them are small electronics with non-polarized 2 prong plugs (which trivially let you reverse hot and neutral). No big deal, I submitted a maintenance request, and had them fixed.
After the electrician came, 5 out of the 7 outlets were fixed, and two were completely non-functional (which were previously functioning but just reversed). I turned the power off and investigated for myself. I found the source of the issue: the hot wire for one of the outlets was cut and capped. The second non-functional outlet was downstream from this one, so that's why it wasn't working either.
Is that a dangling ground wire? Yep, sure is. But that's another question.
Shockingly (heh), the wall side of the wire is a short stub (which barely reached into the junction box) and isn't capped.
My question: what's going on here? Why would anybody ever do this? Is this just some total shitshow, or is there some intention I don't know about?