It's up to you on the nude skin. Either or, I suppose.
However, here's part of what EG The Watcher on MCCC Discord told someone just earlier today...
"...in any case, recovering files from the Batch folders OR redownloading the affected cc can fix any problems. we usually recommend a DO NOT BATCH folder for default replacement cc.
(just gotta remember to take it out...)"
Oh! Another thing...
"And when I try to run it again, it still comes back as fixed."
Do you mean it says nothing needs fixed, or does it keep fixing it even though it's supposed to be fixed?
It says that nothing needs to be fixed. As far as a nude skin, I can do research to see which ones the most people seem happy with. And if a scan comes back and says it doesn't need fixed, I guess that is a good sign.