Every time AO3 makes an update, there’s a chorus of ‘and can we please please please be able to leave kudos on each chapter pleeeeease?!?!’
In theory, this is a nice idea. We’ve all smashed the kudos button on our favourite fics, bemoaning the fact we can’t give them all the love.
But ya’ll, kudos per chapter would absolutely fucking suck.
For readers, it would suck because it would compound the existing problem of making it hard to find fics that are good and not just long - not that a fic can’t be both! But there are plenty of Pulitzer-worthy one-shots out there that are buried way way down the list when ranked by number of kudos, because they’re beneath a bunch of 50/? fics where the author lost sight of where the hell the story was going 30 chapters ago, but their fic has had 50x the chances to be viewed so has more kudos. It would encourage authors to release their fics in lots of little chapters instead of a few longer ones/one-shots as they might otherwise have done (and as might otherwise suit the story).
And for authors it would especially suck, as it would compound the existing problem of people not commenting. Kudos are very much appreciated, but comments make an author’s day; but so few people bother, and frankly, it’s disheartening. Let people just click a button to show their appreciation for each new chapter? The hits:kudos:comments ratio would get even worse than it already is.
You can already ‘give kudos’ for each chapter of a fic on AO3 - by commenting. Hell you can literally write ‘kudos!’ It will make the author smile, I promise.