Instead of resteeming posts, the bots would do better to compile a post with links to the articles and the first paragraph. This would help with not generating tons of posts in the followers' feeds.
Really though, it is better for separate curators to handpick articles then to leave the work up to bots. I'm currently working on getting a Discord server set up for my @steemitbooks account where people can drop links to book related posts and I (or other people I assign as curators) can look through and select the best ones to feature in a curation post. While it requires more work it will lead to better quality feed then if you let a bot do it.