'Are you just winging it?' Legal expert warns Elon Musk he may have just made a huge mistake
Elon Musk in Hong Kong, China January 26, 2016. REUTERS/Bobby Yip/File Photo

Twitter CEO Elon Musk stirred more controversy on Sunday with a new policy that will end rival platforms' ability to give themselves "free promotion" on his social media site.

Specifically, the Twitter Support account stated that "we will remove accounts created solely for the purpose of promoting other social platforms and content that contains links or usernames for the following platforms: Facebook, Instagram, Mastodon, Truth Social, Tribel, Nostr and Post."

In a tweet justifying the new policy, Musk argued that he could no longer allow "relentless free advertising of competitors" on his social media platform, while then adding that "no traditional publisher allows this and neither will Twitter."

However, as former federal prosecutor Renato Mariotti noted in a reply to Musk, Twitter and other social media platforms are not traditional publishers, as such publishers have civil and criminal legal liability for the things that they publish.

IN OTHER NEWS: Trump aide forced to personally transport 'enormous' 300-pound painting of him to Mar-a-Lago after GSA refused

In other words, if Twitter decides to classify itself as a traditional publisher, it would be legally liable for every tweet that is posted on the website.

"It appears that you admit that you’re a publisher for purposes of Section 230 of Title 47 of the United States Code," Mariotti explained to Musk. "Have you thought about the consequences of the positions you’re taking, or are you just winging it?"

Éric Freyssinet, the deputy director of France's Cyberspace Gendarmerie Command, similarly warned Musk that his company could lose protections against both civil and criminal legal liabilities if it really enforces this policy.

"Any attempt to remove my tweets that link to my other social media accounts, not violating any law, would actually make Twitter an editorial media, and no longer a social media platform, with civil and criminal liability for *any* illegal content therein," he explained.