That seems quite high. How many people would actually watch as soon as they got the notification? Do their videos usually get 500k views in the first hour?

It wouldn’t have to be all or nothing at first. They could still post to Youtube to share the load. Start with 3 servers and see how they get on.

Well, it really depends on how the notification is sent. Most people don’t have push notifications set up on YouTube, so the spike wouldn’t be crazy high there. Even a few 1000 people requesting a video at once could overwhelm a single server’s bandwidth though.

I completely guessed at the 2% number if they were on another platform that sent out emails or push notifications. But I’m sure they’d also lose a huge chunk of those subscribers when moving platforms.

I know KZ sends out notifications via Discord, so I expect they do get some sort of spike right after upload. And, as long as they are on YT, getting a quick post-upload spike also causes the video to be offered to more non-subscribers.