In the next release, we'll have a layout where a user can manage their connected networks. It will allow them to easily make or break existing connections to each of the social networks you have enabled.
As for permissions, right now, we have limited permissions to begin with. If you're using Open Graph Actions, there is a link you can create from the Menu Manager to allow a user to see actions they've posted and permissions for posting those actions in the future. There isn't much else we request additional permissions from the user for.
I hope that helps explain, but if you need anything else, just let me know.
Thanks,
Alex