Yes, as mentioned before.
I can't recall if it's from the rs service practice on these forks or if it's more modern forks, but I've always put 5mls of fluid in the bottom of each leg to help lube it all, it's certainly part of a service for a reba/rev/Sid and fox service practice.
With the upper leg in the condition it's in, I'm not sure I'd go through the effort, if that's the condition of it on the outside, I would imagine the bushings in that leg will also have suffered with that sliding up and down through them.