Why are we discussing too many properties and too many methods rules?

For InterSystems Developer Community we use only 11 rules.

Is "variable not found" a bad rule?

I faced this issue many times, even in my code, and found it very helpful. What is bad that public ObjectScript repositories will be scanned for free for such an error?

Could we discuss these 11 rules that are being used? 

Which else rules could be useful and potentially could be added?