Mark Cuban says Bluesky has “grown ruder and more hateful” and warned {that a} “lack of diversity of thought” on the platform is pushing customers again to Elon Musk’s X, the social community previously referred to as Twitter.
The billionaire entrepreneur and longtime tech fanatic had been considered one of Bluesky’s most seen champions, however now says the platform’s predominantly left-leaning consumer base has created a hostile echo chamber the place dissenting and even mildly nuanced opinions are met with outrage.
“The lack of diversity of thought here is really hurting usage,” Cuban wrote this week in a sequence of essential posts.
“There used to be great give and take discussions on politics and news. Not so much any more. Doesn’t have to be this way.”
Cuban, the tech billionaire who as soon as owned the NBA’s Dallas Mavericks and who not too long ago concluded a prolonged stint as one of many investor “sharks” on the hit actuality present “Shark Tank,” posted a hyperlink to a Washington Publish opinion piece titled: “The Bluesky bubble hurts liberals and their causes.
Within the piece, columnist Megan McArdle argued that the platform’s left-leaning consumer base fosters a political silo. Cuban agreed with the piece’s evaluation.
“The moderation and block tools on here are so advanced, if you see someone you don’t want to see on here, just block them. Don’t attack them,” he added.
He supported Kamala Harris in the course of the 2024 presidential election however didn’t donate to her marketing campaign, joined Bluesky in late 2024 and has posted almost 2,000 instances since.
His first publish — “Hello Less Hateful World” — set a hopeful tone. However that optimism has since light.
“Engagement went from great convos on many topics, to agree with me or you are a nazi fascist,” Cuban wrote. “We are forcing posts to X.”
He mentioned even small disagreements are met with outsized hostility.
“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 grey area, they will call you a fascist etc.,” Cuban wrote.
In response to Bloomberg Billionaires Index, Cuban’s web price stands at roughly $8.35 billion.
Some customers didn’t take kindly to Cuban’s critiques — and so they made their emotions recognized in blunt, usually profane language.
In response to his issues, one consumer wrote, “Go wipe your crocodile tears with a wad of hundreds you tw-t. People are over the idea of ‘cool’ billionaires.”
One other informed him, “Man if I were as rich as you I’d probably be less of a p—y,” whereas a 3rd merely mentioned, “F–kin leave then, p—y.”
One more publish, which Cuban additionally reposted, learn: “It’s like you, as a billionaire, are a despicable bastard and we want you to stop pushing AI and big business here and just Go Away.”
Bluesky launched as a decentralized social media different and noticed explosive progress within the aftermath of Elon Musk’s full-throated endorsement of Donald Trump’s reelection marketing campaign in late 2024.
Musk’s backing of Trump triggered an exodus from X, driving tens of millions of liberal-leaning customers to Bluesky in quest of a quieter, extra ideologically aligned surroundings.
Between November 2024 and Might 2025, Bluesky’s consumer base tripled — from roughly 10 million to over 30 million — in accordance with Pew Analysis Middle. That evaluation additionally discovered that lots of the platform’s most distinguished information influencers lean left politically.
Bluesky CEO Jay Graber acknowledged the politically pushed migration in a June 4 podcast interview with Vox’s Peter Kafka.
“It’s people wanting to just try something new. It’s people finding their community here,” she mentioned.
“I think in general it’s both people looking for something and people looking to get away from something.”
However for Cuban, that group seems to have turned inward. He now worries the platform is discouraging debate and changing into a digital echo chamber.
The Publish has sought remark from Bluesky.
