TanaCon sold 20,000 tickets to a venue built for 5,000
YouTuber Tana Mongeau launched a rival convention to VidCon in 2018. Four times the expected crowd showed up; the event was shut down in a single afternoon.
Read the caseBusiness failures, costly decisions and the lessons they leave behind.
The full archive, in the appYouTuber Tana Mongeau launched a rival convention to VidCon in 2018. Four times the expected crowd showed up; the event was shut down in a single afternoon.
Read the caseOld clips surfaced of him vowing never to promote tobacco. He apologised at midnight and donated the fee. Eighteen months later he was back in the same ad.
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Read the caseThe plant-milk brand grew up Parmalat's 1996 mascot animals and gave them stomach aches. Lactalis called it IP theft. Brazil's ad regulator agreed.
Read the caseJapan's worst food-poisoning case, 2000. Snow Brand delayed the recall, lied about the scope, and suspected coverup destroyed a 75-year-old company.
Read the caseFrance's top telecom sold ad slots inside its own email service. The ads looked like real mail. Users never consented. 7.8 million saw them.
Read the caseThe UK's best-known loyalty scheme merged into Avios in 2011. Members kept their points but lost the tax-free redemptions that made the programme worth joining.
Read the caseTMON and WeMakePrice, owned by Qoo10 Group, missed vendor settlements in July 2024. The court found liquidation value exceeded going-concern value.
Read the caseRamsay drank Cass on camera and called it 'bloody fresh.' Korean drinkers, who know Cass is bland, mocked the mismatch between chef and product.
Read the caseM&Co survived its first administration in 2020. The second, in December 2022, found no buyer for the stores — only for the trademark.
Read the caseThe algorithm-generated Clubcard offer was priced above the standard price after a separate promotion cut it. The screenshot went viral on Reddit.
Read the caseTHE COLORIST's stores were designed for Xiaohongshu check-ins. After the photos were taken, customers did not come back to buy anything.
Read the caseFrom 1,141 shops at its peak to £385M in debt and administration. Supermarkets, the death of CD sales and the 2008 credit crunch finished it.
Read the caseFujitsu handed its mobile division to a fund in 2018. Five years later FCNT was in rehabilitation with ¥143B in debt. Lenovo bought the brands.
Read the caseGaleria Karstadt Kaufhof survived two world wars but not its landlord-owner Signa's collapse. 15,000 staff, €680M in state aid, and 92 stores kept shrinking.
Read the caseFunai supplied Walmart with 2 million TVs a year and made Philips, Magnavox and Emerson sets. It never built a brand of its own, and China made it irrelevant.
Read the caseWei-Chuan's milk share fell from 40% to 25%. Three subsidiaries shut. The group donated NT$3B and exited Taiwan's oil market entirely.
Read the caseCustomers paid millions of yen for magnetic therapy devices they never saw, promised rental income that came from the next customer's deposit.
Read the caseFrom 20,000 retail terminals and 90% market coverage to 2.06% share and a state-owned buyout. The 2-yuan cream that defined a generation lost the online era.
Read the caseEach fine is ¥400,000. Each round of coverage is worth more. After the 2024 penalty the brand posted a public statement saying it disagreed.
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