I saw your tags in the poll comments and I had to jump into your ask box. If you want to reply to comments, don't be afraid to do it! People love nothing more than to interact with the author. People comment to express their love for your work, and I can promise nothing make them more happy than to have a reply from the author!!! It's a "my comment had been seen and made them happy, yeah!" feeling.
My tags, for context:
This poll is wild to me. Tumblr's interpretation of fanfic etiquette seems completely backwards from my internet upbringing.
Back on ff.net, where the number of reviews wasn't even a sortable field, it was still uncool for authors to respond to the reviews. Every fic would end with "Please R&R!!!" but actually interacting with reviewers was the kind of thing you were supposed to grow out of as you went from a socially clueless young teen to a socially competent older teen. Saying "That's exactly what I was going for!" or "Oooh just wait, you'll love it!" or "I'm so glad you liked it!" was really just patting yourself on the back for being awesome, and saying "No, you don't get it--" was too defensive. (Putting "I've been blown away by the response to this fic" in an A/N is sufficiently self-effacing if used sparingly, though.)
On AO3, looking at the comment section of a fic and seeing that an author has responded to every comment with "Thanks!!" or "❤️" feels similarly desperate to me--
--and not just cringey, but also vaguely unethical because it's artificially doubling the number of comments on a site that does allow sorting by comments. Like, let your fic stand on its own merits instead of trying to game the system with fake reviews.
But on Tumblr, there's those AO3 etiquette posts going around saying "kudos are for if you finish reading a fic; comments are for if you enjoyed it." And that just feels backwards. Shouldn't kudos be for if you enjoyed the fic enough that you think it should be boosted in the rankings so more people read it? Comments, on the other hand, are mandatory on every fic you read unless you can't find even a single good thing to say about it. (And you're still obligated to rack your brain a bit to see if you can at least pull out a "Wow, that was an interesting premise!" or "I really love this trope so thanks for writing this!" or "This was such a fun line!" and just try not to be too obvious about damning with faint praise.)
I've had authors respond to say, "Hey, sorry I haven't responded to your comments yet, but I've been reading them" and I'm always like... my dude, that's not how this economy works. You write fics and I leave comments. You don't have to write fics and respond to comments. Take a load off.
Obviously if I say something particularly insightful it's nice to hear the author's thoughts back, and I've had some cool conversations about their inspirations... and the friend I talk to literally every single day is someone where we both loved each other's fics 20 years ago and we got started talking because of it... so it's not like I think it's never okay to respond to a reviewer.
(And, frankly, a lot of my comments are a couple paragraphs long or I'm leaving a dozen comments in a short timespan, so it hasn't usually felt weird when authors do respond to me to comment on some highlights.)
It's just absolutely baffling to look at that poll and see that 88% of authors do or think they should respond to comments, so I'm clearly in the vast, vast minority.
It's absolutely, mind-bogglingly wild. And since it's purely a cultural thing, being in the minority means I'm wrong, and I need to come to grips with that. Like, I'm going to need to actively, consciously work on flipping my judgement-o-meter from "responding to comments is inappropriately clingy and must be actively avoided" to "responding to comments is good and expected" because the former is a social norm I internalized decades ago and now I need to go through the active work of completely flipping what's rude and what's polite -- which is a thing that happens all the time as we get older, of course, but it was a shock to encounter it here.