I did a quick scour and couldn't find a suggestion like this, so apologies if it's been previously posted!
An idea that just occurred to me as a useful feature would be a Recent Literatures section on character profiles, similar to the Recent Images section, where possibly the last 1-3 literatures featuring that character would be displayed?
A lot of times, when I visit the profiles of unfamiliar characters, I have no idea that they have any linked literature unless the user explicitly notes it on that character's profile, which is annoying because I love to read them! However, because the percentage of characters who have stories posted is so low, it would be irritating to check the Library of every single new character I browse, only to find nothing. The Library link is so small and unobstrusive by default that I often forget it's there, in fact!
Obviously, such a section would probably need to be togglable; not every user would want it displayed, and it would break a lot of custom layouts if not carefully implemented, and of course it needn't appear if a character has no lits.
Whether or not folks chose to use a feature like this, I think it would be a nice option to have!
Alternatively, maybe just something like displaying an optional badge with literature count beside the Library link might be a good and easier indicator?
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Just a thought!