Indeed, they're hitting the limits of their webservers. But they already have the most powerful servers EC2 provides. So they have three options: * Move to a n

Indeed, they're hitting the limits of their webservers. But they already have the most powerful servers EC2 provides. So they have three options: * Move to a new provider * Change the way things work so that the job can be spread across more servers * Fix suboptimal things All three of those options are extremely difficult to do quickly with a skeleton crew. Reddit's been improving scalability as fast as 3-4 engineers can, but their traffic is growing even faster.