Earlier quoted context omitted.
> "Comodo invented 90 day free certificate" It's even sillier than that. Comodo has long offered a 90 day free trial cert. You have to pay to renew. Let's Encrypt gives a 90 day free cert that's freely renewable as many times as you want along with an API to renew it. These aren't the same business models at all.
As far as I can tell, Let's Encrypt isn't a business model. It's funded by ISRG who describes themselves as a public-benefit corporation and is tax-exempt by the US tax authority. I don't see any direct profit motive for the ISRG itself, though there may be indirect profit benefits to the sponsors[1]. I don't see any direct ways Let's Encrypt takes payment; more likely, their revenue comes from donations. What I don'…
Nonprofits need business models too.