In the context of Bugzilla bugs, it can be difficult to know who to copy on design-related bugs. I don't believe there's currently an index or dictionary saying "Jared is interested in X" while "May is interested in Y" and "Pau is interested in Z", etc. I've mostly just been copying Jared and using the design keyword, but having a more concrete and explicit practice might be better.
Filing as unconfirmed enhancement.
Version: wmf-deployment
Severity: enhancement