Capitalization – Should Names of Scientific Theories Be Capitalized?

While chemical symbols always begin with a capital letter, the names of chemical elements do not. In running text, you should be writing hydrogen, oxygen, chlorine, iron, etc.

There are so many exceptions. Names don't always get caps all the way through, e.g. "Osama bin Laden", "Giancarlo di Donato", "Martin van Buren". "L'Hôpital's rule". We respect the capitalization of people's names based on the way that they write them, so how is this any different?

Furthermore, on whose authority does he consider this rule orthographically "correct"? All newspapers write brand names like iPhone and not Iphone. Is it really easier to read words if I see them written one way in every professional publication, commercial, and product labeling, and then another way when a random website writes about it?

Clearly, someone is just annoyed at the ways that companies capitalize things nowadays. Sure, it wasn't popular in the past, but in the past we basically didn't have acronyms either (for example). There are always new innovations taking place in language and orthography. So, there is no basis in this being objectively "correct", nor does popular usage dictate that this person's rule is reflective of actual usage.