I do wish it was easier to publish and get short stories in a similar way to novels. Like, I don't need a 300 page tome every time. But even anthologies of short stories by new authors (as opposed to Sci-Fi classics) seem to be out of style.
There’s a whole market for short fiction actually if you look. Magazines, anthologies, etc still exist. Where do you think “the best American science fiction and fantasy” anthology sources from every year? Check out SFWA (science fiction and fantasy writers of America) qualifier list for short fiction, duotrope, and the submission grinder.
(Caveat: publication is competitive at these magazines/anthologies. Good luck to you.)
Internet makes it fairly easily to publish your short novels on a personal website. You are not going to make a profit or be marketed but at least your work is now out-there. Reading qntm's ones [0] got me to buy his self-published books.
I agree that internet makes it easy to self-publish short stories. And sure, if you are using it as promotion it makes sense. But I was specifically referring to short-stories as a viable commercial enterprise.
In the west this is still growing, but in Japan at least, it's way more common, at least regarding 'light novels' (kinda of like YA?). I'm not sure about earning money through subscriptions, but there people who write to those sites (similar to Wattpad) often struck a deal with a publisher to adapt the 'web novel' to a 'light novel'[0]
Edit: I know that for webtoons (korean comics) subscription is turning into a reality, at least in English markets. Not sure about how's it in Korea though