Weather you do commercial or residential or both types of inspections, this is not acceptable. We can get into what the NEC says and any other electrical code, but this is obviously wrong.
This is an electrical fire waiting to happen. Depending on this was done, likely after the initial construction phase, it is a good argument for permits and construction plan reviewing.
I just thought this was a great picture. What a mess.
LOL...yes, all those holes on the sides of the box don't NEED to be used up before installing a second one. When you can't get the bottom plate screwed on, you have way too many wires.
DAMN !!!