How Unique Does Content Need to Be to Perform Well in Search Engines?
with is talking about adding unique value to your content:
We heard a ton about "unique content" and "unique value."
I'll just add (and this is not "unique" as you heard million times about it) - don't hit that publish button if you have nothing to contribute. Don't post just because your blog needs "fresh content" or because it's a hot topic everyone's writing about. Rather, if there's nothing new - just post your thoughts and have a discussion on social media - that's better than having "just a typical" blog.
Same applies to social media and content curation. Always contribute something to what you share if you care about building your brand.