[yardie]

Strange The OSS kext I use for SMART USB HDDs [0] is also signed, but obviously not the source. You can download the compiled and signed driver here [1].

[0]https://github.com/kasbert/OS-X-SAT-SMART-Driver [1]https://binaryfruit.com/drivedx/usb-drive-support

This sounds like one reviewer has it in their mind that the signing is for licensing (commercialization) and not for security (authentication).