Meanwhile, in reality, Nat looks uninformed for writing "xBox" because it is incorrect.

I'm not saying "Xbox" is necessarily the best, or that I even have an opinion, but it does happen to be the correct capitalization.

Using correct English capitalization rules makes someone "uninformed" now?

Given that it's a proper noun and the pronunciation is "X Box", I would think the pseudo-initialism "XBox" would be more proper English.

Given enough time, everything becomes assimilated to look "normal". Consider the words RADAR (RAdio Detection And Ranging) and LASER (Light Amplification by Stimulated Emission of Radiation) -- what started as initialisms became normal words after people started using them regularly. It can presumably happen to newer words like "Xbox" and "Gmail" too.

The logotype is set as "XBOX", so yes, writing it as "Xbox" looks uninformed.