Sites that do this can call this practice whatever they want. Often, it’s called aggregation, or simply reporting. There’s a continuum between 100% original reporting and zero value being added to the source content, but I don’t think I’m being unnecessarily inflammatory by labeling the posts on the far end of the continuum as rewriting.
When a post is rewritten, the rewriter knows that most of the audience won’t visit the original link. That’s the point. They don’t want to send anyone away from their site.
Rewriting sites (“aggregators”) will never adopt Curator’s Code in meaningful numbers because they don’t care. Whatever you think of what they do is irrelevant to them: they think it’s fine, their readers don’t care, and it seems to be legal.