Horizontal scrolling multi-column was a weird aesthetic choice based on personal preference (despite bad and growing worse browser support, sigh), but it's a personal blog and as "a 90s web kid" I strongly believe weird aesthetic choices are what makes blogs personal and not just another walled garden like most of social media (or Medium).
I've been tracking it for a while: https://github.com/WorldMaker/lcars-moderne/issues/1
The main problem is that it's not discoverable, at least on MacOS where there are no scrollbars. I found the horizontal scrolling by chance after trying every key on the keyboard. In the meanwhile I had already scanned the article using the Reader mode in Safari.
This is also one of the things where I'm disappointed that browser support for multi-column has only grown worse over time rather than better: I tried to intentionally set it so that there would be at least some next column "bleed through" horizontally in CSS and that (mostly) worked when I built the CSS theme but WebKit, Blink, and Firefox all moved to implementations that always balance columns evenly in viewport space rather than what the CSS specifically asks for. (And Edge Classic died, the one browser that really cared about good multi-column experiences.)
The web is top-to-bottom, every user has this expectation. The usual mouse has a top-to-bottom scroll wheel, not a left-to-right one. Maybe it's not what you want, but it is what it is. You can either accept that fact and use a top-bottom layout, or accept the fact that you made a deliberate decision to create a confusing UX.
I also point out that I tried to add affordances to make it easier to use and was stymied by bad browser support getting worse. I haven't updated this CSS in a while, because I haven't felt like I needed to, but the way the browsers display it in 2021 is actively worse than when I wrote it and I'm sorry about that.
I can also at the same time believe that Apple removing scrollbars altogether and not replacing them with some sort of affordance is also a UX crime, whether or not my own decisions that make are worsened because of it were deliberate.
If you're set on that, maybe you could try adding a really unmistakable indicator such as a "Scroll right for more ->" text. I'm not sure if that's good as I'm not a UX/UI designer, but probably better than nothing. Still, as a user, a would prefer something that I'm used to, such as top-down text.
But they don't, so its generally our job to work around that and provide sane usability in light of decisions made by larger browsers.
Still doesn't make horizontal scrolling discoverable or a pleasant UX.
That having been said, you should be able to tune your stylesheets to vend one that gets users single-column text on mobile devices with some elbow grease. Up to you whether it's worth it.
No complaints from here about the mobile UX.
Certain browsers make it completely non-obvious that you have to do so to see more content, and it's no longer "intuitive" UX for most users.
You're trying to sell someone that your idea is right, but having the desktop experience be a bit difficult (and putting it on the end user to deal with it) doesn't really help you in communicating your points. It also makes it harder for them to digest your content, therefore people might just skip over it.
But again, it's a personal blog so all these decisions are up to you and your liking!
It is interesting how many of these comments have fallen into style of substance fallacy over the contents of the arguments themselves, and I am listening to all of this feedback. This current CSS was designed to make 90s kid me happy, primarily on "Edge Classic". It's not aged as well as I would have liked, and I don't know if/when I'll revisit it, but I am listening.
Don't get demoralized. Everyone is boring today. If this was a business or something I'd say ditch it and make your website have Bootstrap or whatever least common denominator thing. It's not, it's your place to express yourself, so don't let wet blankets ruin your site for you.
Here's two other weird sites just to keep up your morale.
Sure, but in this case the choice also strongly sacrifices usability. Even on non-MacOS desktop firefox I didn't know there was more to the article before reading the parent comment.
If you want people to read more of the article then perhaps make it easier to find out that there is more of it.
Also, if a typographical defect has a name (widows and orphans) can it truly be novel?
The caniuse statistics for CSS native support for widows/orphans correction is much better today than when I last worked on this CSS file: https://caniuse.com/css-widows-orphans
It's been on my backlog for a while to find a good JS replacement but haven't been happy with the ones I've tested: https://github.com/WorldMaker/lcars-moderne/issues/1