Most things in our regular day-to-day lives would leave residue, even water (maybe deionized wouldn’t?) just a matter of how much and how noticeable. About the soap, well if you smell it on your hands after wash, then it’s still there and you will rub it onto stuff. At least it’s just soap tho…
I don’t know if you can reasonably remove all contaminants off your skin, unless you plan to like glove up or destroy the skin by washing waayyyyy too often. But you know, good hygiene will keep things you touch nicer for longer so keep at it.
Tbf unless you’re really anal about it, you’re never going to have perfectly clean hands all the time. But if your controller is getting discoloured quickly and regularly, then you can probably tell where the problem lies regardless of its colour.
I have similar issue with mouse, but it takes about 3-4 years of regular use for it to get really noticeably discoloured or start rubbing off top coat, to a point where even cleaning with IPA doesn’t do anything. And that’s a black mouse.
Also worth noting, many hand creams are a big no-no imho. Some of that shit destroys your gear, worse than any dirt.
As lucrative as Valve and Steam may seem to buy, even for 10x that amount, any analyst who is realistic about suggesting the purchase to another company would know that it isn’t worth it. Not that it’s a bad buy, but whoever can afford to buy it likely could not help themselves but fuck it up and run the whole operation to the ground.
I’ll probably try Project Rubi-ka when they reopen the servers/help them out with some bug hunting, since Anarchy Online, despite its flaws, is still the best MMORPG I’ve played to date… which is kinda sad tbh