What makes this type of fakery gross is the false impression it gives of what welding looks like. That quick, rythmic, tapping is an aesthetic of competence contrived for these viral crafting/maker videos, but it would result in a much worse weld than seen in the video.
If you emulated this, you’d end up with the superficial appearance of a weld that might hold up when lifted or struck lightly as one might do to “test” something, but the first real force on it and it’s gone. Bad video!
