Ask HN: How to ommit downvoted comments in HN?

As most people here know, HN discussions are often a great source of knowledge and insight on various subjects, and I usually dump the large ones (100+ comments) on the Voice Dream Reader app in my phone (I have no affiliation with them) and listen to them while commuting, etc.

I'm searching for ways to hide/remove the downvoted comments (grayed out) and their children before sending to VDR.

At first I thought about creating a scriptlet, but looking at the html the nesting is done via styling instead of structured in the html, complicating the hiding of children messages.

When I tried the API it doesn't expose the "grayness" of comments.

Anyone here knows/has a solution to this?