For your first gripe, I think it wouldn't add anything over crawling a website. If you only want to archive the content, with semantic HTML you can easily know

For your first gripe, I think it wouldn't add anything over crawling a website. If you only want to archive the content, with semantic HTML you can easily know where the article is. It seems like a solved problem when browser reader modes can extract the data so well. For your second gripe, perhaps a separate "excerpts" feed would do it. I know some podcasters publish the same content over multiple feeds for this kind of customization.