Developed in 2016, Stormtracker has been used to follow viral posts about the company. It’s tracked everything from rumors that Facebook listens to users, to a prank that told users if they didn’t copy and paste a status Facebook would share their private information, jokes about Mark Zuckerberg looking like an alien and more. In at least a few cases, Facebook used Stormchaser to share messages debunking false claims about the company.

Some say Stormtracker is proof that Facebook prioritizes fighting fake news that puts the company in a bad light over other misinformation, but the company says that’s not the case. “We didn’t use this internal tool to fight false news because that wasn’t what it was built for, and it wouldn’t have worked,” a Facebook spokesperson told Bloomberg. “The tool was built with simple technology that helped us detect posts about Facebook based on keywords, so we could consider whether to respond to product confusion on our own platform. Comparing the two is a false equivalence.”

It’s not uncommon for companies to monitor what customers are saying about them on social media. But Stormtracker offers a reminder that Facebook has a unique advantage. Because it owns major social media platforms, it has unique insight, and when necessary, it can take measures to debunk rumors and pranks. It also raises questions about exactly how private Facebook’s future will be while tools like these exist.

Facebook is attempting to thread the needle between censoring the unquestionably altered video and allowing people to share what they want. In contrast, YouTube has opted to remove the video altogether, according to CNN. While Facebook’s approach will attempt to dispell some of the misinformation created by the video, it may be too late for that. The edited footage has already racked up millions of views on Facebook alone and has been shared by President Donald Trump (he has since deleted it), former mayor of New York Rudy Giuliani and a number of other high-profile people. The addition of a disclaimer won’t retroactively inform viewers who have already seen and shared the video.

Facebook has attempted to take a more active role in stopping the spread of fake news in recent months, cracking down on fake accounts and trying to make misinformation on controversial topics like vaccines less visible. However, the company has always been a little tepid to actually remove content. It took years for Facebook to ban Alex Jones and InfoWars from its platform despite regularly sharing false information.