"This repository experiences a huge volume of fetches (multiple fetches per second on average). We understand that part of the CocoaPods workflow is that its end users (i.e., not just the people contributing to CocoaPods/Specs) fetch regularly from GitHub"
Actually, in the text, I guess no one voting me down has actually read it, he pretty clearly defines the developers as the people who contribute to the packages, not the people who download and use them. It's like saying, as an IDE user, you are a developer of the project, you are not, you are an end user of a developer product. The end users, in this case, software developers, are using it as a CDN. It's pretty clearly stated in multiple places, github is not a CDN.
Except the original quote in this comment chain was "Discounting the fact that CocoaPods is used by millions of iOS developers." so that's what 'developers' was referring to in the comment you originally replied to