It shouldn't delete anything. But KOReader doesn't support Amazon's file formats, or DRM, so you either need to convert them, or use the normal UI to read them. Removing DRM is pretty easy, although illegal in most countries, and converting is also easy with Calibre. This guide might help with that: https://lemm.ee/post/58718431.
And read the jailbreaking FAQ: https://kindlemodding.org/jailbreaking/jailbreak-faq.html
Jailbreaking basically lets you de-Amazon your Kindle. You can replace the default user interface and reader app with KOReader, which is more feature rich. This video shows some of the features that KOReader has and some other things you can do with jailbroken Kindle: https://www.youtube.com/watch?v=Qtk7ERwlIAk
Gentoo Linux is another distro that beginners should avoid.
In Finland, we have "heart label" (Sydänmerkki). The label has text "better choice", and it's intended to inform customers about products that are good for heart health. You can find this label pretty much on any product category, including things like cookies, ice cream and pizza. You are expected to know, that the label actually means "better choice for heart health within this product category". So yea, I agree with you on that intuitive part.
I don't like the extra weight, so no, I don't use case at home. My reader of choice is Kobo Libra Colour, which has those side buttons so it's easy to hold without any extra straps or such. Also, as the display is recessed, it's less likely to be damaged, so I feel it doesn't need extra protection. I wouldn't put it into any kind of bag without a case, though.
For those who have an Amazon Kindle, it's currently possible to jailbreak almost all Kindle models, thanks to a new jailbreaking tool released earlier this year. That includes the latest generation devices, as long as they haven't been updated to the latest firmware that was released last month.
Country of origin is a bit of a fuzzy concept when we talk about Linux. For example, Linux Mint (Ireland) is based on Ubuntu (UK), which is based on Debian (Global, but founded by American). So is Linux Mint Irish, British, Global or American? Also, every Linux distribution comes with software that has been written by numerous people all around the world.
It also says that Kentucky Fried Chicken is United Kingdom, and McDonald's is Switzerland.
Or Tim didn't say thank you for being allowed to join the inauguration.
The iOS app was updated 7 years ago, and clicking the Google Play button leads to “page not found”. Seems abandoned to me.
Their data is crowd sourced, and they seem to have (or have had) users in many countries, so products available in your country might be available. But I haven’t used it so I can’t say what information they provide or how accurate it is.
As far as I know (I'm not an expert), negative void coefficient only affects the fission reaction, i.e. the controlled splitting of uranium atoms. The uranium atoms split into smaller unstable atoms, which decays over time causing heat. If the decay heat isn't removed, the core will melt.
Pebble Bed Reactors seem to be generation IV reactors, and I don't think there are any generation IV reactors in commercial use as of today. Again, my knowledge is limited, but I believe most reactors in commercial use are some kind of water cooled, water moderated reactors. For example, European Pressurised Reactor (EPR) is one of the latest designs commissioned in commercial use, and that design includes 4 emergency coolant systems.
As it is an Amazon device, someone might simply want to de-Amazon their Kindle. Perhaps because of the megacorporation that Amazon has become, or just to boycott USA.
The interface on Kindles isn't exactly the best out there. For one, it's very focused on selling you new books, while reading those books was almost a second thought for the designers. The settings to adjust the reading experience is limited. One font size might be too small, but the next bigger is too big. Margins and line spacing have very limited settings. Also, Kindles doesn't support EPUB, which is ridiculous considering it is the most common e-book file format - we are talking about an e-book reader device here.
You can install Linux if you want to, but it probably isn't very useful. There are also games and some other apps. You can also repurpose the device, if you don't want to use it for reading. For example, if you are using Home Assistant, you could turn your Kindle into an information display or control panel.