short form writers look at people writing 100k+ fics as though this is some sort of talent given as part of a fae bargain, that the commitment required shows some sort of ungodly mental fortitude.

I present to you: the floating ao3 comment box!

From what I've seen, a big problem for many people is that once you reach the comments at the bottom of a fic, your memory of it miraculously disappears. Anything you wanted to say is stuck ten paragraphs ago, and you barely remember what you thought while reading. This fixes that!

I'll give a little explanation on the features and how it works, but if you want to skip all that, here's the link.

Edit: Yes, this also works on mobile!

The extension is visible as a small blue box in the upper left corner.

(Side note: The green colouring is not from the extension, that's me.)

If you click on it, you open a comment box window at the bottom of your screen but not at the bottom of the fic. I opened my own fic for demonstrative purposes.

The website also gives explanations on how exactly it functions, but I'll summarize regardless.

insert selection -> if you highlight a sentence in the fic it will be added in italics to the comment box

add to comment box -> once you're done writing your comment, you click this button and the entire thing will automatically copied to the ao3 comment box

delete -> self explanatory

on mulitchapter fics, you will be given the option to either add the comment to just the current chapter or the entire fic

The best part? You can simply close the window the same way you opened it and your progress will automatically be saved. So you can open it, comment on a paragraph, and then close it and keep reading without having the box in your face.