[raverbashing]

But obviously then the security people will raise ruckus about any attempt of telling you what is wrong

(Which ok, for an external facing system is ok)

I can bet the huge prevalence of "system says no, and nothing tells you why" helps a lot with creating vulnerable systems.

System need an "let X person do Action" instead of having people waddle through 10 options like SystemAdminActionAllow that don't mean anything to an end user