Op said nothing about only allowing corporations. Simply stated that one path to allowing large swaths of users without having to approve every single individual user is to trust all users of certain orgs by default.

Presumably you would still allow individual contributions but with restrictions unless someone has vouched for them or some other gating factor.

I am genuinely baffled by how you could possibly parse my comment as suggesting we allow "only" big tech companies.

It doesn’t have to just be companies. It could be some kind of guild with standards and application criteria. That group could vet members and kick them out for posting slop code.