Yes, I fully support this position by Meta but their reasoning is not quite right when it comes to astronomers and scientists. Passing around a leap second kern

Yes, I fully support this position by Meta but their reasoning is not quite right when it comes to astronomers and scientists. Passing around a leap second kernel is a major pain for everyone dealing with GPS, satellite ephemerides, celestial bodies, etc. Leap seconds transform a problem which is entirely deterministic, and make it dependent on a policy decided by a committee, like timezones.