
Most of these things are designed to make people who think they have a case second guess it. In many situations they do have a case, but that second-guessing can pay dividends to the would-be defendant.
Effectively this is advertising that you’re a dick and will continue to be a dick if you’re held accountable for being a dick. It’s intended as a deterrent to not even try it.







They are legally unenforceable, but if you don’t know that, you won’t break the seal, which makes the company more likely to make another sale if the device breaks.