In creating social and web content, it's helpful to introduce variation not only across different topics but also in length. For instance, when we're creating content for clients' social channels, we produce a variety of short posts and longer articles. Don't try to stretch a simple concept to be article length... you're likely to just end up with a lot of redundancy and filler.
On the other hand, don't try to reduce complex topics to a handful of sentences. Our short posts on LinkedIn reach more people, while our articles can produce higher levels of engagement among narrower audiences.