I was browsing the xfce4-dev mailing list when I stumbled on a request for comment by Steve Dodier-Lazaro (who I knew in the past through the #exaile IRC room) on his article regarding the design of authorisation UIs.
The article covers a lot of ground, from current issues plaguing these UIs (in Windows UAC dialog, gksu, etc.), to the types of operations in Wayland that are planned to require authorisation, to brainstorming ideas for moving forward. A lot of issues are still unsolved and I suspect will be years away from being solved, but I’m glad that people are talking about them. The article also calls for further academic research on fixing these issues.