Why is this an issue?

Shared naming conventions allow teams to collaborate efficiently.

This rule raises an issue when a function name does not match a provided regular expression.

For example, with the default provided regular expression ^([a-z][a-zA-Z0-9]*+(_[^a-zA-Z0-9])?+|)$, the function:

def DoSomething( ) : Unit = { // Noncompliant
   // ...
}

should be renamed to

def doSomething( ) : Unit = {
   // ...
}