I have (finally) finished my DIP draft for the [Delegates and qualifier transitivity](https://forum.dlang.org/thread/gbrwklyugksqbpksgmgp@forum.dlang.org) idea discussion. It can be found [here](https://gist.github.com/dukc/0ede11a0fcb77b2ff92654ceaa7805e2), and is awaiting your feedback.