It's more like: you work as an animal spotter, and if you tell people you saw a hamster, you'll get no glory. So obviously you spotted a direwolf at least 12 feet tall.

Interestingly CVSS was designed to help with this specific issue. You are complaining that the system is imperfect, but you fail to imagine how it works without such a system, everyone tagging their issue as critical.

CVSS is good, it's better than nothing.