ByteDance is rushing to sell a 20% stake in TikTok Global to Oracle and Walmart at an enterprise value of $60 billion. TikTok otherwise faces a ban in the US on 12 November, subject to legal challenges.

The sale hinges on ByteDance obtaining approval from China to export TikTok’s core technologies. China updated its export control rules to include algorithms (and AI), entrenching a tech cold war with the West.

TikTok has confounded regulatory woes in India and the US, and renewed competition from US tech, to post dizzying user growth in every major internet region where it is available, casting off its image as a niche youth product and entering the mainstream.

Online reviews are a vital input for consumer decision-making. However, reviews are easy to manipulate, and widespread fraud is undermining credibility and raising the issue of consumer protection.

Facebook, Google, and Amazon utilise reviews to improve the consumer experience, but also to sell advertising to businesses and to address fraud. These companies leverage their data superiority to better utilise reviews on their platforms, and possess a competitive advantage, versus sites like TripAdvisor, Yelp, and eBay.

Demand for expert opinion remains strong, yet is supplied only by publishers and Which?, a small segment in terms of share of traffic relative to platforms.