Open to it. For now I’m going to keep it as a userscript and build out some of the interesting ideas people have suggested here. If it keeps growing, a proper extension would definitely make sense.

Makes sense. You can also iterate faster without the hassle of getting your extension approved on the chrome store, etc.

Rather than making hn extension, maybe you could contribute to https://oj-hn.com/ / https://github.com/OrangeJuiceExtension/OrangeJuice I use it and find it to be great, would love to see this in it! :)