Ah, yeah, for the activity list on your profile page, it’s a complex query to collect all the activities with their respective counts. It looks like I missed the exclusion of nested cities in that query.
It’s the activity page that’s correct. Streets in nested cities don’t count for global/site-wide stats. They’re all displayed in the list to help you jump to the specific nested city, if you need to (note their city names are also displayed).
Edit: The completed street count is correct in both places. It’s the incomplete street count that I forgot to add the nested city exclusion to.