I would like to request the ability to Deny specific users / groups access to specific repositories.
This would allow for global permissions to be applied, but then restricted down if needed on a repo by repo basis with minimal changes to the global perms.
Eg I need to stop anonymous access to 2 out of 100 repo's , it would be simpler to just deny access to the specific repos for that user. Otherwise we need to change the default Anything permissions group, when adding a repo remember to add it to that group etc etc.
THis would also cater for abuse scenarios when a specific user could be locked out from that specific repo for a period of time