Author who write with money in mind however....well they should probably not write in Asian light novel format at least. All the stuff having to do with the Japanese anime and Chinese cultivation culture isn't something a western company would likely work with you on i would say.
There are numerous weeb authors making full-time livings through Amazon and Kindle Unlimited in particular. Honestly, with self-publishing and how utterly massive Amazon is, it doesn't matter if you write in a light novel format and use Japanese/Chinese themes or not. Sure, the chances are low, but you probably have
better chances making money through something like KU by putting an Eastern spin on your writing. It's pretty niche as far as self-published works go and there are most definitely people willing to pay for it.
Or you could just write in a typical Western format like what 99% of English novels are in and compete with everybody else trying to appeal to general interest instead of honing in on a specific audience. Then you can play the game of trying to get a traditional publisher by sending your manuscript to hundreds of them, sometimes over the course of decades, only to get declined again, and again, and again,
and again, when you probably could have just self-published some weebshit and made money that entire time while not forcing yourself to conform for a potential shot at a traditional publisher = P.
Genre also matters. LitRPG, GameLit, and even Wuxia are all
huge right now in terms of websites like Royal Road, Webnovel, and Scribble Hub,
and they're successful on Amazon. Those genres pretty often borrow Eastern themes (Wuxia in particular, obviously) and are even written in a light novel format sometimes.
Are they traditionally published by some fancy publishing house that pays for all the marketing, expenses, etc? Nah. Are some of those authors still making more than six figures yearly with ease? Absolutely. So, it doesn't really matter whether or not a Western company would want to work with you when self-publishing is more than good enough
unless you're trying to become some worldwide-famous mega-hit like Harry Potter.
But seriously, don't underestimate how many weebs and Japanese/Chinese fans in general there are. Not only is an Asian company unlikely to ever work with you unless they plan on taking advantage of you (Webnovel) or if you know their language and can write in it, but there are plenty of weeaboos and chinaboos happy to spend money on original, self-published English works that borrow themes and tropes from their favorite Chinese cartoons.
All that really matters is that you're writing what people want to read. If you're not writing what people want to read, you're going to get paid a "piss poor amount with little potential for viewer growth" regardless of whether you're writing in a Western or Eastern style. Style and even quality are significantly less important than being able to write something that is fun, that catches attention, and that people want to read. I've seen several authors from Royal Road who only had 600-1k followers with meh-rated stories who made anywhere from $2k to $6k in the first month of self-publishing with KU. If you're able to write a story that gets at least 1k followers, you're probably decent enough to make enough money via Amazon's self-publishing even if you're a weeb. You just have to learn how to properly make use of Amazon's tools for self-publishing, and that's a non-issue when there are tons of free guides online.
tl;dr: Getting traditionally published is a meme that tons of serious authors don't even care about anymore since it's just unnecessary. You can easily make money by writing in an "Asian light novel format" if you still know how to write a story that people want to read.
Or a story like that Ero Dungeon? Just wouldn't happen.
truth tho lmao
Now, to answer the original OP since I'm here...
Personally, i can understand if the author wants to make as much money as possible but i think it's a risk. As a reader, i'm not a fan of it as it makes re-reading practically impossible due to all content vanishing. It also hinders a story from enticing potential future readers as well.
After a certain point, you're going to get more readers from self-publishing with something like KU than you would by staying free forever on the internet. My longest story over on RR is sitting at 2090 followers right now and probably only gained 500 over the last year (compared to 1500 in the first month). Once the initial exposure bump is over, the exposure you can get from self-publishing is far higher than what you can get by hoping some random new reader stumbles upon your story on the same site that it's always been on. It does suck for the readers who want to re-read it for free, but I would never fault an author for doing it. Reading for free is a privilege.
yay for making long seriousposts to procrastinate