So I've been told that waterspots are basically cosmetic but can lead to rust.Was wondering if anybody can go a little deeper into that .Here are the questions 1) if I keep my blades oiled after use,will this just stay a cosmetic issue and (is it pretty much commonplace to begin with ? )2)if this is really something I need to worry about like a cancer,what can I do do get them out without getting involved with spending a ton of money on equipment etc. that is to say,is there a paste or sinple removal cream I can apply? Would say a jewelers cloth for silver work as I already have one? I'm lookin for simple.I don't want to have to buy a special strop or put anything on my existing strop as I want to keep it nice and natural. My blades are not corroded and I'm sure it's the water.Case in point my new blade was dry and stropped and ready to be put away this morning but when I set my mug down next to it a small drop got on the blade.when I wiped it off there was a small stain. Normally while shaving I wipe the debris off on a microfiber towel that has been soaked and wrung out,But I always wipe the blade dry with a chamois and coat with camellia oil when done and I'm not running the blade under water or getting the scales all wet or anything like that. So here we go.....