>>281291290 (OP)
>>281291319
Naruto is shit, but it's normalfag shit and it has ended so generally, more people are inclined to watch it.
Additionally, these numbers come from Japanese netflix numbers, where Japanese viewers watch broadcast anime as they broadcast (that's why Seven Deadly Sins was so high, it was only shown on Netflix so anyone watching it would be getting Netflix for it and it's incredibly long).
Additionally, every one (1) person who watches all of Naruto contributes roughly 300 hours to its total. That's why it's so high.