Essentially there's little or no likely gain in security or trust to be had by using HPKP, but you add a lot of risk to your operation if you do use it. It's li

Essentially there's little or no likely gain in security or trust to be had by using HPKP, but you add a lot of risk to your operation if you do use it. It's like putting a nuclear bomb on a hair trigger in order to protect against the risk that mutant zombie rats will set up a lemonade stand in front of your McDonald's franchise: an overkill solution to an extremely unlikely threat.