The 1st pic is just a poor choice of a faceplate &/or trim..
the 2nd pic is of 2 switches in a garage that were being held to the drywall by the faceplate which was fastened by duct tape. No box at all! (there was a broken 1 gang pvc box in the bottom of the stud bay I found later....
the 3rd pic I believe is someone attempting to achieve open air ratings on those #12 TW's... no box, Hey look! theres that broken box laying at the bottom of the pic!
4th pic... neutral pinched by the light fixture..
5th pic... 4/0 box, unbonded, no box connectors, & no wire connectors, (not even tape! just hot conductors twisted together! but someone did manage to use a wirenut on the grounds )
(The purpose of the hotstick was just to prove it was hot in the photo)
6th pic.. Live romex, spliced, just sitting up in the corner..