Excited about this!
Points of feedback:
I don’t like to have to scroll my screen horizontally to read the comment. (I notice there’s a lot of perfectly good unused white space on the left side; comments would probably fit horizontally if you pushed everything to the left!)
Sometimes when you mouse over the side-comment icon, it tries to scroll the page to make the comment readable. This is very surprising and makes me lose my place.
Hovering over the icon makes the comment appear briefly. If I then want to scroll in order to read the comment, there seems to be no way to ‘stay hovered’—I have to click and toggle it, to make the comment stick around so I can actually read it. (This plus being forced to scroll the screen makes the hover feature kind of useless.)
Overall, feeling optimistic though, and will probably use this.
Tim Urban’s new book, What’s Our Problem, is out as of yesterday. I’ve started reading it and it’s good so far, and very applicable to rationality training. waitbutwhy.com