This is an announcement from 2012 to introduce the News Keywords which were used by Google:
But this is a more recent announcement (Feb 2018) that the News Keywords are no longer being used by Google.
Please look into deprecating the News Keywords feature from SmartCrawl SEO meta tags.
Please note, that is now old news but SmartCrawl doesn't seem to be aware of it. I'm hoping someone can be assigned to keep more in tune with the SEO industry itself. SmartCrawl provides many guides for crafting content for SEO, but outdated rules cause us to spend a lot of time getting SmartCrawl to like content which might be perceived very differently by Google. This translates to a waste of our time and is fundamentally opposite to the purpose of our investment in WPMU DEV. So, like Defender with security, SmartCrawl needs to be tuned more frequently for industry trends. Here's another Feb 2018 article that discusses how things are changing:
In a perfect world (for our purposes) I'd like to see an SEO "state of the art" article in the WPMU DEV blog every 4-6 months, with notes that detail how SmartCrawl is changing to adapt to then-current trends. Even if there are no new trends to prompt changes in SmartCrawl, let us know. THAT would be a great way to continue getting the message out about why people should stay current with their WPMU DEV membership.