I found this junction in my attic when doing some unrelated work. It was entirely wrapped in electrical tape before I took the photos. My assumption is that it’s not code since it’s not in a box, but how dangerous is this? They split the wire and spliced the hot and neutral, potentially soldered to then new line, but left the ground intact. I took it apart and put it in a box. Is it worth looking for other DIY electrical?
EDIT: Found another one! It seems even worse. Unfortunately I can’t even tell what this powers. It runs to an area that is difficult to access. Should I just disconnect it and see what loses power? It strikes me as a poor choice of wire to power outlets, to say the least, but I don’t know what else it could be. It seems to be a cheap extension cord which was spliced.