A lot of people with mental health issues self-medicate with illegal drugs. This guy was probably suffering from depression, and the police pushed him too far. So ridiculous and tragic.
With Dvorak, the most commonly-used letters are on the home row. In fact, all of the vowels are on the home row.
The most common letter in English is E, and QWERTY makes you reach for it. You know what IS on the home row? Fuckin' semicolon! Can you even remember the last time you used a semicolon?
I spend a lot of time at work sitting, so I'd rather have a comfortable chair than an uncomfortable chair. Same with my keyboard: I'd rather have a comfortable layout than an uncomfortable one. Less risk of repetitive strain injury, too.
Some people like vim the way it is. That's why they haven't re-invented it. If you want to use a more intuitive text editor, there are plenty available (such as nano or micro).They don't need to turn vim into a clone of something that already exists.
As for why it's still the default... It's the same reason why everybody uses QWERTY keyboards when Dvorak is clearly superior. People already know how to type with QWERTY and they don't want to take the time to re-learn with a new layout, change their workflows, etc.
It isn't universal, though. Garuda Linux defaults to micro. The web dev boot camp I was in didn't bring vim up at all! We only used nano! I think that was a disservice to the students, but the instructors must've thought that it would be too confusing.
Unfortunately, the answer is "It depends". Although plant-based foods are usually suitable for vegans, it isn't a regulated term, so you can't be sure. Also, I think the term "vegan" has negative connotations that "plant-based" doesn't, so marketers prefer to use that term instead.
Except that "draw 25" isn't a metaphor, it's just using a different meaning of the word "draw".