Agents are shipping code faster all over the world and in some cases 24 hours a day. Additionally, some significant number of non-developers are now developers i.e. they are also shipping to github regularly.

This is not limited to just pushing code but all the bells and whistles that github added as features under the assumption of some predictable growth are now exceeding the original plans.

I suspect a lot of their existing systems have to be re-architected for unanticipated scale, and it won't happen overnight for sure.