I skimmed this thread briefly - my understanding of the OP is that playing a DE razor on a strong magnet helps to realign the microns-thin edge. Corrosion resistance via drying/alcohol would be a separate effect, I think.
My gut instinct questions whether even a strong magnet is strong enough to realign a blade edge, even if it is microns-thin. I would be curious if someone with a good microscope that is capable of examining blade edge and alignment would take 2 blades - 1 not exposed to a magnet and the other continuously exposed to a magnet, both being used for an equivalent amount of shaving after a week and then examining the edge to see if there is a difference. Better yet would be a daily microscopic examination.
That doesn't address the question if placing the razor on a magnet, or drying/alcohol swishing makes a difference. Frankly, for the cost of blades, the only type of treatment I would actually consider doing is a spritz of alcohol to help dry the blade to prevent micro-corrosion, and then only if it actually works (I don't know if that does anything or not).
My gut instinct questions whether even a strong magnet is strong enough to realign a blade edge, even if it is microns-thin. I would be curious if someone with a good microscope that is capable of examining blade edge and alignment would take 2 blades - 1 not exposed to a magnet and the other continuously exposed to a magnet, both being used for an equivalent amount of shaving after a week and then examining the edge to see if there is a difference. Better yet would be a daily microscopic examination.
That doesn't address the question if placing the razor on a magnet, or drying/alcohol swishing makes a difference. Frankly, for the cost of blades, the only type of treatment I would actually consider doing is a spritz of alcohol to help dry the blade to prevent micro-corrosion, and then only if it actually works (I don't know if that does anything or not).