The new system effectively crowd-sources fact-checking, relying on Meta users to comment and correct contentious posts on Facebook, Instagram, and Threads.
There are concerns the move could expose Meta's 3 billion users to misinformation, as this system is nowhere near as precise as 3rd party fact-checking.
The changes come as Meta's fact-checkers face accusations of progressive political bias.
Fact-checking is not the only change, with Zuckerberg also announcing users can expect to see more politics in their feeds, and with fewer restrictions on contentious political topics.
Meta's main man is seemingly motivated by Trump's imminent return to power.
Zuckerberg has even gone so far as to offer to work with Trump, on a worldwide free-speech campaign.
And while the changes roll out in America first, Australia likely isn't far off…
Speaking with ABC Radio National Breakfast on Wednesday, Australian Greens senator Sarah Hanson-Young says Mark Zuckerberg has bowed to US president-elect Donald Trump and is "making big profits at the expense of community safety".
"What Mr Zuckerberg has announced is similar to what, of course, Elon Musk had done a couple of years ago, is to rip the rug of any type of decency out from underneath users and allow … whoever is the loudest, whoever is the angriest, whoever is the most outrageous, to have their views heard," Hanson-Young said.
She also believes the decision will result in a "free for all on misinformation and disinformation" and says it's a "really worrying sign" that tech companies, in particular X, could influence politics in Australia.