user permissions

Okay so I was a late learner on how to properly utilize XF user group and node permissions. Even though it makes perfect sense now. I am trying as part of my tidy up the backend goal ...to go back through and properly set up my secondary user groups and staff groups ... as well as clean up my...

I wonder if it is possible to restrict image access for both visitors and newly registered users? Refers to images uploaded via the forum and not any linked images. I want to give users different permissions based on how many posts they've made and/or how long they have been registered. Is it...