I'm not sure if that salt acts like a marinade and breaks down the tissue or if it is just there for the flavor
Salt is supposed to make like an osmosis process take place. Where it first draws out moisture from the carcass but then replaces it with a moisture that will somehow stay in during cooking, there by providing a moist and not dried out over cooked bird like so many TG turkeys.
My sons' gf brine's our TG turkey but also adds in herbs and orange slices (she uses a recipe). It makes for an excellent bird! Most brine I have seen also have some sugar in it. This is on par with marinading I think, but adds moisture and not just flavor.

The first and only year my mother in love brined a turkey was the best I had to that point. Now son's gf is on turkey duty instead of us avoiding it every year.
We haven't started pluck and just skin our chicken so far. We put it in the fridge several ways at first. Yes if open it get's dry spots. We just use a ziplock bag. Believe it or not... we have aged them 2 weeks in the fridge with
no issues, not even a hint of foul smell (silly pun). I can't even imagine how fast store bought chicken goes rotten. Something to be said for home processing... and we aren't even clean freaks!

Maybe because we only do 1 or 2 at a time.. We now keep the bag closed during rest.
If freezing before resting, I like to mark on the bag that it needs to rest after defrosting. But now I wonder if freezing actually makes the rigor pass sooner somehow?
Yes, you CAN brine before you freeze. EVERY single store chicken (at least the frozen ones and I think a lot that come in the "fresh" area) have already been brined and might contain as much as 25% water!

And I wondered about brining during the rest period too. I don't see why not. Of course I would drain off excess.
