Does anyone have knowledge of any lawsuits to date from this kind of cyberspace advice?

If not, it's coming when a death or fire happens, even if the advice was perfect.

Would a Surgeon or a Veterinarian give advice over the internet to someone who sewed up their drunken buddy or hunting dog because the DIYer had some experience?

Electricity is no less dangerous.

Extreeme comparison but relative.

Roger