100% agreement on that. I think most people are mainly thinking about the risk of shock and aren't worried about 12v since it's typically not going to hurt you. The real risk is a potential short from something getting dropped, a tool arcing, etc. I've seen too many people do unintentional arch welding on 12v systems when a tool bumps up against the positive. With proper fusing, the damage can be minimized, but it's so easy/cheap to just protect the positives and avoid it. Zip ties and bits of rubber hose, etc. can be very effective. This is also where the lynx distributer shines since the bulk of the connections are under a protective cover. Many people complain how expensive the lynx is, but it's cost competitive with other quality bus bar solutions once you add fusing. A pretty good video linked below that compares the lynx. This guy also has some other videos on the lynx system, including one on how to use the cheaper lynx "power in" and convert it to take fuses like the lynx distributer.