Doesn't this more or less boil down to OCR scans of books having more privileged information than a plaintext file? In which case a roundtrip won't add anything

Doesn't this more or less boil down to OCR scans of books having more privileged information than a plaintext file? In which case a roundtrip won't add anything? [0] https://web.archive.org/web/20140402025221/http://m.nautil.us/issue/6/secret-codes/teaching-me-softly https://web.archive.org/web/20140402025221/http://m.nautil.u...