It'd be great if HN added a way to view comments I've upvoted.

We thought that was a good idea so we did it. You should now see "saved comments" in your profile. Thanks for the suggestion!

We also changed it so "saved stories" and "saved comments" don't include your own submissions, given that those already have their own pages.

Thanks, that's brilliant!

Thanks! Just noticed the change. This is awesome.