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Let's Encrypt Announces New-Certificate-Every-6-Days Offering
(letsencrypt.org)
This is a most excellent place for technology news and articles.
Indeed not, it's how real life works, as there is more to lige than just SSL. If someone has access to your SSL certificates you have a ginormous set of issues, your easily replaceable SSL certificates being one of the lowest priority. I don't see how a 6 day limit on that is going to do anything at all to help you with safety