A year's OSM tile traffic

Charlie Loyd tooted this wonderful animation of a year's OSM tile traffic:

and followed up with:

The answers to your questions are:

1. Yacht and rally car races.
2. Yes, well noticed! We call it “Null Island”.
3. No, but it would be nice if it were practical.
4. People scraping tiles.
5. Yes, because the distribution of traffic follows Zipf’s law.
6. If I have time.

He credits this toot for the idea, showing one month's traffic with a similarly engaging video: