Mark Cuban, the billionaire entrepreneur and longtime “Shark Tank” star, says he’s done posting on Bluesky for now, and the reason is simple: it’s not worth the negativity anymore.
In response to a user who said they missed seeing his posts and understood why he might not be active anymore, Cuban replied bluntly: “It became pointless.”
From High Hopes to Disappointment
Cuban was once a vocal supporter of Bluesky, the social media platform that gained popularity after Elon Musk took over Twitter in late 2022.
Disillusioned by changes on X and Musk’s financial support of Donald Trump during the 2024 election, millions of users left the platform by the end of that year. Bluesky absorbed many of them, becoming a haven for left-leaning users who wanted to escape the political chaos.
The site surged in popularity, jumping from about 10 million to 30 million users between November 2024 and May 2025, according to Pew Research Center.
When Cuban joined Bluesky in late 2024, he was optimistic. One of his first posts read: “Hello Less Hateful World.”
But nearly a year later, he says the platform has taken a turn for the worse.
“Agree With Me, Or You Are a Nazi Fascist”
In a series of posts, Cuban described how Bluesky’s atmosphere became more toxic.
“Engagement went from great convos on many topics, to agree with me or you are a nazi fascist,” he wrote.
He continued: “Even if you agree with 95% of what a person is saying on a topic, if there is one point that you might call out as being more of a gray area, they will call you a fascist, etc.”
He said the tone of the platform has grown “ruder and more hateful,” and that a lack of tolerance for differing views is pushing users away.
Bluesky’s Political Bubble
According to Fortune, Cuban said Bluesky had become “ruder and more hateful” and pointed to a “lack of diversity of thought” that makes meaningful debate difficult.
The platform, once seen as a liberal refuge, now risks alienating its own user base due to rigid ideological norms and intolerance for even minor disagreements.
Cuban shared a Washington Post opinion article titled, “The Bluesky bubble hurts liberals and their causes,” which argued that the platform’s heavy political skew has turned it into an ideological silo. Cuban endorsed that view.
“The lack of diversity of thought here is really hurting usage,” he wrote.
He also said users should use moderation tools instead of lashing out: “If you see someone you don’t want to see on here, just block them. Don’t attack them.”
Cuban explained that conversations used to be lively and productive.
“There used to be great give-and-take discussions on politics and news. Not so much anymore. Doesn’t have to be this way.”
Users Returning to X
Ironically, Cuban believes the behavior on Bluesky is now sending people back to the very platform they originally left.
“We are forcing posts to X,” he wrote, suggesting that the hostility on Bluesky is undermining its appeal.
For now, Cuban appears to be stepping away from the app. He hasn’t announced any plans to return.
But his message is clear: a platform he once embraced for its potential has become, in his words, “pointless.”
Bluesky has not responded to Cuban’s remarks.
Whether Cuban returns or not, his criticisms highlight a broader issue many social platforms face: when a space becomes too ideologically narrow or hostile to dissent, even supporters can feel pushed out.
IMAGE CREDIT: “Mark Cuban” by Gage Skidmore, via Flickr. Licensed under CC BY-SA 2.0. Image adjusted for layout.