I read webnovels because they are free. Webnovels are popular because they are free. I can ignore translation errors, typos, mixed up names, never ending incomplete story, low quality in general etc. because it is free.
For payment, I prefer a finished, polished, complete ebook I can read offline on Kindle. It doesn't have to be sold on Amazon, I'm happy to buy a epub/mobi file on this or any other platform (avoid amazon fees). Something I paid for stays with me forever, even if the website no longer exists.
For stories I really like, I would be willing to pre-order the ebook (to be available as download when the translation is complete - good faith offer incomplete downloads until then). In an ebook series it should at least cover a major arc per installment. Of course the price should be fair as well (can't spend hundreds dollars on a single story, can't spend money I don't have).
I understand this clashes with your business model (people need to visit the site, watch ads, and be enticed to spend $ per chapter, even if that adds up to a scary cost [price of single chapter * total chapters left in the story]). So it probably won't be happening.
I will read here as long as it's possible to do so.