Would like to designate a user group with 'no access' for certain areas of the site. This is a big use case for our community. I would like to be able to rely on the 'Registered Users' group and then just exclude access on the specified user group.
Building a user group of 'All Registered Users EXCEPT for these people' may not be feasible for us.
I was able to accomplish this with the version 3.x permission model, but cannot do so in 4.0.x.
Also documented on Permission override for a Group