Reddit CEO Steve Huffman took a shot at TikTok during a appointment this week, calling it “fundamentally parasitic” and comparing it to spyware. His specific apropos appear to be based on the fact that the belvedere uses a form of “device fingerprinting” to track user behavior.

Huffman was responding to a catechism about what startups could learn from TikTok‘s success, saying, “I can’t even get to that level of cerebration with them.” He also said, “I actively tell people, ‘Don’t install that spyware on your phone.'”

[]

There is some merit to his concerns. Rufposten appear on TikTok using audio and browser-based trackers, which parent aggregation Bytedance says is to “identify awful browser behaviour.” We’ve also heard that the US government has opened a civic aegis analysis into TikTok after its acquirement of Musical.ly, with one of its apropos being how it stores data.

Huffman isn’t alone in his disdain. Facebook’s Sheryl Sandberg, in an account with NBC, said of TikTok, “They’re a Chinese company, if people are anxious about data I think there’s a lot to be anxious about there.”

That said, there’s a assertive aspect of defensiveness in the animosity of TikTok — while TikTok and Reddit don’t necessarily have a agnate social vertical, they’re both aggressive for the same admirers — which is to say, everyone. In the same NBC interview, Sandberg accepted Facebook was abashed about how aback TikTok became a major competitor: “In the world of tech we attempt for every minute of your attention. Every day you pick up your phone, I mean my kids pick up the phone and they’re on TikTok… they’re huge, they’re growing really quickly, they’ve gotten to bigger numbers faster than we ever did.

Snapchat’s Evan Spiegel also said in a January account that it was “certainly possible” that TikTok could grow bigger than Instagram, “because this talent-based agreeable is often more absorbing than status-based content.” So far, he’s one of the few social media “heads of state” not taking a adverse view of TikTok or its parent company.

There’s a abandoned irony in an controlling from the aggregation behind Cambridge Analytica being anxious about data privacy. Huffman’s also taking some heat from Reddit’s own users, who accuse him of affectation for his analysis of Chinese-owned TikTok when aggressive Chinese aggregation Tencent owns a stake in Reddit.

Read next: Microsoft's Surface Duo is reportedly ablution months beforehand than accepted