I know that something has to be different so we know it's a new-style formatter.  That's ok. My problem is when the something is a construct that looks like it does nothing:

``` ruby
def notifications
  super
end
```

The mental model that every experienced rubyist holds is that this method definition is a no-op and can be deleted.  If you want to stick with `def notifications` as the way users tell us their formatter is ready for rspec 3, we should not provide a default implementation they can `super` to as it creates this confusing construct.