@sabreW4K3 great question. my thought is no but also yes.
The current login via (Mastodon|Bluesky|Threads) is for users who want to add their review to their existing microblogging feed, but Lemmy is not primarily for microblogging.
However, I do think it's valid use case to post a book review to a forum and interact with members of that forum. This does not require login via Lemmy, but instead can be achieved by adding Group feature to NeoDB and make its federation compatible with Lemmy.
@neodb I get what you're saying about why one would want to login, but I think you underestimate how great an addition to the Fediverse, NeoDB is. You shouldn't limit users based on how you think they'll display posts. Especially as some users won't necessarily want to flood their feeds with reviews, but will still want to contribute towards such a magnificent project. Especially when you look at something like https://literature.cafe/c/tefn it's obvious that there's potential for a Lemmy and NeoDB marriage. Maybe it would finally bring the Novel Updates users to the Fediverse. No matter what, it starts with enabling as many users as possible to add content. But I am also excited for NeoDB Groups idea 😂
@sabreW4K3 thanks, I'll think about it. neither is trivial efforts, will probably take a while.
Web fiction is an interesting topic by itself, there are currently some debate among NeoDB.social users about if/how that should be managed in the catalog.