On the new user profiles, there is a link for helpful flags. When you click on it, it takes you to your flagging summary.
If you have zero helpful flags, either because you've never flagged anything or because your flags are either pending or were not deemed helpful, it's not a link!
This should be a link regardless of whether you have any helpful flags or not. If you haven't flagged, it should just go to a blank page that says "This user has never flagged anything".