If you had a really robust system, it'd be fun to just slap a read-only mirror of your internal metrics dashboard onto the public Internet for anyone to browse and slice as they please. It'd be a brag, kinda.
Of course, in the real world, I don't think there's a single IT admin who didn't just start nervously sweating and pulling at their collar after reading the above, imagining it as something their CEO said and encouraging them to target it. Nobody can really do this — and that in turn says something important about how those metrics really look in most systems.
FWIW, I've worked on systems that have internal SLAs orders of magnitude higher than what they promise to the public. I think it's more just that there's no advantage to doing something like this as long as none of your competitors are. The status quo is that people's systems are really opaque and vastly underpromise what they should be capable of, and in exchange you get to absorb some unplanned downtime due to issues with underlying systems that you have little control over.
Of course, in the real world, I don't think there's a single IT admin who didn't just start nervously sweating and pulling at their collar after reading the above, imagining it as something their CEO said and encouraging them to target it. Nobody can really do this — and that in turn says something important about how those metrics really look in most systems.