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't get is why the CEO of Comodo, all the people on the thread all seem to assume Let's Encrypt has a business model, and that they are a competitor. The Comodo CEO seemed to keep coming back to that point, taking all of this personally. There is no business model to steal from Comodo because Let's Encrypt is not a business. And people kept responding and upholding that assumption?
Can someone give me a sanity check here on my logic? Am I the only person who sees this?
[1] https://community.letsencrypt.org/t/what-is-the-business-mod...