Separate profiles is perfect. Not sure why I haven't been doing this. The keyboard shortcuts are wonderful and enter to open the article is so optimistic! Thank you for dragging me across the finish line. Your extension is glorious.

Edit: I liked the j and noticed it even worked elsewhere (bestcomments is when I ran into it)! None of this is requests, just reflections. Still warming up to the keyboard navigating collapsed comments behavior. Also I think I remember the original HNMarkAllRead 'hide stories' checkbox hid stories after visiting comments. (And there was a hide comments checkbox that when marked only revealed new comments since the last visit) There are lots of workflow permutations to hn!