So the Tiers of access is like - Free to read - Adwalled: Pay spirit stones or watch ad to unlock. *- Account walled: Must be logged in to read. - Paywalled/Premium: Only unlocked by paying spirit stones. is that right or - Free to read - Account walled - Pay/ Premium walled Just curious.
That was a reply to @Dizzcity's post, it's been forever since I last checked how QI works. For any novel's NU listing, it all depends on this: https://www.novelupdates.com/nu-policy/
I'm not entirely sure myself, as I now rarely follow any series on Qidian after the paywall came up. But I think the second system seems to be more correct, based on what others have said. So even ad-walled novels need an account to watch ads.
If your Qidian chapters are not appearing it is because they are not following NU's policy. This also applies to the retroactive removal of chapters. This is the policy in particular they have been breaking recently: Your release is locked. (Not accepted: password protected, requiring user to log in, appwalled or paywalled releases. Accepted: adwall releases). For password protection releases, an exception to this rule would be if the password is on the same page as the chapter link and easy to find.