Re-posting someone else's blog post, word for word, will likely not help you at all. Getting requests to link out to these other sites also doesn't help you--at least not near as much as it helps the sites you're linking to.

This exact question has already been answered: https://clarity.fm/questions/5199/does-blog-re-posting-of-some-other-company-add-value-to-your-website

They need for improve their SEO and raise link weight on the website. Call me if you want to know more about how it works