I do it from time to time and I feel like it's a mix of several things (1) it's counter culture, (2) it's early internet culture, (3) aesthetic/uniformity, (4) laziness, (5) carelessness, (6) a power move, (7) "hyper rationality".

And all of these contribute to it being a power move.

I assume it's on purpose. It certainly is when I do it, because I have to keep overriding autocorrect's insistence that I type like a grown up.

though maybe they're just typing from a computer and there's no autocorrect to get in the way. even then, i have to override my own instinct

I use all lowercase on platforms where I share original content because I like the aesthetic of lowercase letters. They look more harmonious to me. I only use uppercase when using acronyms because I think they're recognized quicker by their shape.

a symptom of spending too much time on IRC back in the days, IMHO

I actually have auto-capitalization turned off on my phone

I had a boss that did that.

"case doesn't actually matter, i'm not gonna waste my time hitting shift"

I do it sometimes when I don't feel like using my pinkies to hit shift. This happens more often on laptops where the keys are flat.

Looks like a capital issue.

in my case pep8 is to blame

Not a power move at all! It's just that people who are this smart, whose brains operate in a higher dimension than you can possibly imagine, won't waste precious mental cycles on silly uppercases just the rest of us commoners.

Speed. The fact he even decided to Tweet/Xeet during a period of personal and professional upheaval is notable on its own. I’m cool adding in my own capitalization as needed. Or maybe I could past it in ChatGPT!

Too soon?

I've always seen it as a way of peacocking. A way for people to make themselves stand out from others. But I think it also stems from a mindset of "I'm aware that professional communication involves proper capitalization, but I'm not going to bother because I don't feel the need to communicate professionally to the person I'm typing to"

I'm fine with it as long as everyone is typing in lowercase. But if the culture of a company or community is to type a certain way, there's some level of disrespect (or rebellion) by doing the opposite.