[wackget]

Lots of nice tweaks, but the most important is missing: the ability to move the collapse comment buttons (`[-]`) to the left of commenters' usernames. Doing this makes the collapse buttons all aligned with each other, making them far easier to click in succession. "Comments Owl for Hacker News" extension does this I believe.

[oersted]

The grey bar on the left that the extension adds also collapses the comments. They are aligned vertically and they have a bigger clickable area than [-].

[conorcleary]

but then the upvote button is too close to the collapse thread, plus, why make it easier to hide discussion? => makes it easier for scripts to automate by visual/x,y placement

[latchkey]

Thanks for this suggestion, but I agree with the other commenters.