I genuinely see no problem with this. Mass scale so-called-social media increasingly overwhelmingly has no genuine value.
“How do you scale to a billion users?”
How about - don’t? Taking this as some obvious good reeks of Zuckerbergian “we’re connecting the globe.” Yeah, connecting, say, Jihadists around the globe. Facilitating Russian psyop units connecting to Joe 6-Pack in middle America. Connecting billions of $ in advertising to the hyper-specific data of users, to better sell them shit they overwhelmingly don’t need and would never want without being convinced their insufficient without it.
In terms of news that an algorithm realizes people find interesting — yeah, overwhelming the most “interesting” news is, if not outright fake or totally misleading, then highly incendiary. Regional issues have been covered for 100+ years by journalists in responsible and nuanced ways. Social media is not required and, I’d assert once more, actively harmful.
The problem is this applies to any social media website with algorithmic recommendations. A hashtag can go viral anywhere. What use is it singling out TikTok? At what point is the platform responsible for things its users decide to do to themselves?
The answer almost always boils down to human moderation with a degree of common sense. But how do you scale that to a billion users?