Actually, the thing I would be interested in most is a better way to search my comments, my upvoted comments, etc.

HN has a search box, but afaik there's no way to filter by user, or to restrict the search to my upvoted comments, etc.

Downloading would be a good second-best option, because at least it would allow me to "grep" through the archives.

You can restrict "by:user".

Hmm I see that could be interesting.

The software this script is built around [0] comes with a developing [1] search functionality.

The idea is that using these plugins and the main software one can group / save / search their digital identity - and that's exactly what saving comments would work towards.

[0]: https://archivy.github.io [1]: https://github.com/archivy/archivy/pulls/159

Upvoted comments is the one thing I've always wanted (I don't care for the rest). I often upvote things that are useful to refer back to, and without this there's no easy way to find them again.

Why not favorite them?

Are favorited comments really any more discoverable?

(I use them a lot: https://news.ycombinator.com/favorites?id=akkartik&comments=...)

They're public? I don't necessarily feel a desire to make a public announcement about every comment I think might be interesting or worth referring back to.

I do not see any rate limiting, this could lock people out if they have more then a couple pages of posts.

The API (https://hn.algolia.com/api) being used limits to 10000 requests per hour so I doubt there would be a problem.