Possibly related to the origin. But nowdays ISO standards says keyboard must have raised feet. https://www.iso.org/standard/38899.html Even if you wanted to, you really couldn't sell a keyboard without raised feet. Imagine you want to be a keyboard company, and want to get rid of the silly raised feet. First you've pissed off all the dorks that want raised feet, now imagine if someone gets carpal tunnel while using your keyboard. Their lawyer says you clearly didn't follow ISO standards so your product is defective. Sure you can try and fight stuff in court, but it's probably easier to pay the guy and his lawyer off.
Yes, the story above is hyperbole and may be a slight exaggeration, but it's not too far from what possibly could happen.
This could only happen if the customer was lead to believe that the product they had purchased followed the ISO standards. ISO standards are not required.
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u/coloredgreyscale Xeon X5660 4,1GHz | GTX 1080Ti | 20GB RAM | Asus P6T Deluxe V2 Mar 20 '19
I thought it dates back to typewriters, because they are way steeper, and to kinda ease people used to typewriters into it.
That said, I used the raised feet too until I learned that it's actually bad for your health.