Not much, since we’ve never really had it, but yes, I would love to consume hypertext like a stable API, have user-styles and block elements I don’t like. I do these things now, too, but in a better world they could be less of a hassle technically and less niche socially, then I’d do them even more.

Here’s a uBlock Origin style I use for hackernews, for example:

    news.ycombinator.com##.comment:style(max-width: 40em !important;)