Your first link is from Hard Drive, which is quite obviously a parodic website, kinda like the Onion but for tech. That being said, Wikia/Fandom is a parasitic growth on the internet that leeches on the free work of countless enthusiasts, and alternative fan-run wikis should be used instead.
It’s true they would probably be more useful to the average keyboard user than say the scroll lock key, or the fucking copilot key. But to be really useful, they would have to be easily accessible without moving you bands, or else it’d just be faster to use a shortcut. Keyboards with macro keys do exist so maybe get one and map them to CTRL+C/V