[dvzk]

Zero cost TLS certificates might be what Let's Encrypt is known for, but it wasn't the first entity to offer them. LE also disrupted the CA market because of IdenTrust's initial cross-signing, and ACME's development and rollout, under the banner of a well-funded reputable 501(c)(3). Nothing is stopping someone from starting an above-cost 501(c) non-profit registrar, similar to the ISRG or the PIR.