<i>Allowing known-risky formats that keep failing over and over is negligent.</i><p>But if you look at this from the opposite direction, you&#x27;re essentially arguing that we should only use technologies that are known, or at least reasonably expected, to be extremely safe.<p>Given that in general humanity hasn&#x27;t yet figured out how to create such technologies, and that numerous formats we use every day on the web to great overall benefit would not qualify, that seems a tall order.