Set initial value for score properties to 0 rather than null
So when score properties are first attributed to a contact record they are initially set to null - or empty value. It would make more sense to initially set these to 0.
The use-case here is when using scoring properties in a calculation property, if the score is null, it ruins the whole calculation until a value is present in the score property and sometimes we need to do calculations before all the score properties have a positive or negative value.