User blog comment:Kirkburn/Technical Update: June 24, 2015/@comment-24473195-20150710222239

I just had a thought, perhaps What links here should also work globally now that these modules  can be "required" from anywhere. I'm not exactly sure how this would affect caching and performance, so I'm putting it here for discussion as well as submitting the suggestion to Special:Contact.

One great advantage to this is that we can see which modules are popular in a much more efficient way than Wikipedia, which currently uses a bot to generate the list. High-use modules would become candidates for protection, and people can more easily co-ordinate and prioritize fixes and enhancements to useful and popular global modules.

There seem to be a lot of advantages to this, assuming that it doesn't cause severe performance issues. But hopefully with caching it won't happen.