Mark Cuban Criticizes Bluesky for Increasing “Toxicity” Among Liberal Users
Billionaire entrepreneur Mark Cuban is voicing disappointment over what he describes as growing hostility and intolerance on the social media platform Bluesky, which many have embraced as a left-leaning alternative to X (formerly Twitter).
In a series of candid posts this week, Cuban lamented the increasingly combative tone among Bluesky users—most of whom, he noted, lean liberal. Once hopeful about the platform, Cuban now says it has taken a turn toward the “hateful.”
“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.,” Cuban wrote.
Cuban joined Bluesky in November 2024, shortly after Donald Trump’s re-election, with a welcoming post that read: “Hello Less Hateful World.” But that optimism has since faded.
“The replies on here may not be as racist as Twitter, but they damn sure are hateful,” Cuban posted Monday. “Talk AI: FU, AI sucks go away. Talk Business: Go away. Talk Healthcare: Crickets.”
He added, “Engagement went from great convos on many topics, to ‘agree with me or you’re a Nazi fascist.’ We are forcing posts to X.”
Bluesky, founded by Twitter co-creator Jack Dorsey, surged in popularity following the 2024 presidential election, attracting users who sought to escape the perceived rightward shift of X. A Pew Research Center study recently reported that Bluesky’s user base tripled—jumping from 10 million to 30 million between November 2024 and May 2025. The majority of these new users are politically liberal.
High-profile progressives like Mark Hamill, John Cusack, and Stephen King have made Bluesky their new home for political commentary, particularly to voice opposition to Trump’s second term. Dorsey himself resigned from the Bluesky board last year, citing a desire to step away from platform governance.
Cuban’s critique underscores a growing challenge for emerging platforms: maintaining civil discourse even among ideologically aligned communities. While Bluesky was initially promoted as a refuge from the toxicity of mainstream platforms, Cuban suggests it may now be falling into the same patterns of polarization and ideological gatekeeping.
“It’s not about race or right vs. left. It’s about intolerance for nuance and real dialogue,” a tech industry analyst commented in response to Cuban’s posts. “What Cuban’s describing is the downside of ideological bubbles—where even small disagreements become grounds for personal attacks.”
With input from Fox News.
