This is probably misguided. Apple includes the OS version number in the user agent, so an attacker can actually pay to have code delivered only to users with vulnerable versions of MacOS. (advertising marketplaces allow bidding by user agent)
Heya, I couldn’t find a way to contact you privately but I’d assume you want to delete your comment until (presumably) next month! Correct me if I’m wrong tho :)
Alternatively, a mod could help to edit it instead