I have read the threads on the provided link; unfortunately, I feel most of them are bunk.
- Yes, WD-40 will deactivate primers.....so will Hoppes oil, Rem-oil, motor oil, and the natural oils from your fingers. Actually, you deserve to have your primers deactivated if 1.) you have your gun so sopped with oil that it can attach itself to the shell and 2.) you are dumb enough to leave a loaded round in the chamber long enough for the oil to seep in.
-ANY liquid lubricant (break free included) will attract dirt, powder residue, grime, dust, ect and gum up the action of a firearm over time. .22 rimfires are particularly more susceptable to this because in addition, there is usually a waxy lubricant on the outside of the bullet that helps gum up the works if allowed to build up.
-I would not use steel wool to remove rust; spray a little WD on an old cotton cloth and rub gently.....if it is just minor surface rust, it will come off.....if it is deep, the bluing unfortunately will come with it.
-If you are using a liquid lubricant and it freezes and stops your action, it is too cold to be outside anyway......take a clue from your gun, get indoors next to a nice fireplace, and read a good book.
-I have used WD-40 as a rust preventative and a lubricant for years; lately, for lubricants I have gone to the spray on silicon lubricants and have not been disappointed. I have also used powdered graphite for my semiautos in areas that I felt would be extremely dirty, such as the duck marsh. I still use WD as a rust preventative, but I feel that RIG products are superior to all.
I will add that do your best not get any oils/lurbricants on the wood......over time, it will soft the wood and cause it to crack.