That's a lot of work for a fic on tumblr, though; an actual book, I would understand, but a fic??
You’re right, it can be a lot of work for a fic on Tumblr, and i’m not saying every fic has to have a Bibliography, cited sources, and links matrix at the top of the author’s note so people understand what’s happening. I’m not saying if you’re writing an apartment in Manhattan that you go find a specific address or layout to make the immersion so real (but if you do, fucking props, you work harder than I do). This also isn’t to say that every fic has to be 100%, I addressed that last time. I misspelled ‘clipping.’ for HALF OF MY FICS and no one called me out for it. If I had paid attention, been less lazy when googling or proofreading or researching, then I could’ve been saved the moment of ‘oh fuck that is so embarrassing.’ We all grow as writers. If you’re starting out, don’t get freaked out by me being a bitch about research and think a ‘great’ fic requires a research essay. It doesn’t. But if you think your fic needs a boost, doesn’t feel ‘real,’ enough, research may help!
What I’m saying is that the extra little bit of work (that all writers do in the real world. And I keep seeing people say that fic writers deserve to be treated like real world writers) is the extra mile. Temp put it best, in a conversation we just had about this same topic: “even 10 minutes of research can change so much.” And I believe that to be true. Even if it’s just for your sanity or confidence! Knowing you got this specific right is a big boost (at least for me), and can be a nice moment for your readers, be it for clarification, exposure to a new thing, or a little easter egg that they notice because they know that fact too.
And I hate to be that bitch (though I do not mind being a bitch should the situation call for it), but it’s my opinion. If you don’t agree (and I know people disagree with me and don’t think research matters) then that’s okay! But I firmly believe that accuracy and detail matter in writing and in fics. That’s just me. You don’t need to research for six hours, but Google is a pal.