Your comment history reflects a persistent approach: insulting the person you're replying to.

Please reflect on the site guidelines. https://news.ycombinator.com/newsguidelines.html

There is a reason why certs have expiration dates. It's to control the damage after the site owner or someone else in the cert chain messes up. That doesn't mean expired certs are inherently not secure, only that you should still care about it and do your best to avoid using expired certs.

On the contrary, it's a very precise answer.