Comment by wakawaka28

The core guidelines aren't as subjective as other guidelines but they are still subjective. There is plenty of completely sound code out there that violates the core guidelines. Not only are they subjective, but many of them require someone to think about the best way to write the code and whether the unpopular way to write it is actually better.

I know compiler front ends can be and are used to create tooling. The point is, you shouldn't be required to implement some kinds of checking in the course of implementing a compiler. If you use a compiler, you should not be required to do all this analysis every single time you compile (unless it is enforcing an objectively necessary standard, and the cost of running it is negligible).