>Actually, capitalization in English is fairly straightforward. The first word in a sentence and names (whether personal or business) are capitalized. Nothing else is.

Nope, those are the rules for some other languages. I wish it was so in english but it isn't. There are certain lists of names (of calendar entities, for example, plus a few more), and then there's this habit of people to capitalize words at pretty much random. Just a few hours ago I ran into a document where it says... here:

• Restart the Computer.
• Make sure that the USB {name omitted} Capture Device is connected to the computer.
• Make sure that the S-Video Cable or Composite Cable is connected to the microscope or ultrasound scanner and to the Capture Device.

Note that the word computer is capitalized in the first line but not the second, or that cable and device always are but microscope and scanner aren't. Texts like this are so frequent that I have concluded that the One Rule applies ("We don't need no rules, we have lists")... most of the time.