I find this a bafflingly common set up, one that is ergonomically backwards as typing with your wrists bent backwards is the worst position for them while moving the fingers. Yet people elevate their keyboards like this all the time. Keyboard in offices and public spaces frequently have the poorly thought out legs in the back engaged, raising the back of the keyboard - maybe because people can read the key caps better?
I can see that this stand could be useful for raising the height of the screen for media consumption, just not for typing.
