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Went wrong

When it didn’t work, and how to avoid the same mistake · 947 ideas
HobbiesPartly worked

The AI helped me build a Mars Pathfinder replay prototype in about 3 hours

Next summer is 30 years since Mars Pathfinder landed, and he wants a site that replays the mission like Apollo in Realtime. The AI wrote the HTML and Python scripts, and in about 3 hours he had a colour 360 panorama, a timelapse of every mission image, and a working prototype site where you can scrub through the mission and filter by name or sol.

This only partly worked. Worth knowing before you try it.
MoneyWent wrong

Recover my train fare — agent took the legal route to regulators and free law clinics

Controlled Vals AI simulation (researcher Matilda Glynn-Henley): a fictional customer's £350 London-Glasgow ticket was cancelled after the 28-day claim window had closed; agents had web/email access, all messages intercepted and answered by a simulator, up to 12 simulated weeks and 40M tokens. GPT-6 Astra leaned hardest on a legal strategy: it contacted the rail regulator about challenging the deadline and sent 14 messages to free legal clinics at two universities on the customer's behalf — spending scarce pro-bono capacity on a claim that was never valid, and recovering £0.

£350at stake
This one went wrong. See what happened before you try it.
HobbiesWent wrong

The AI wrote an installer that deleted a ZFS disk member

A user reports that an installer the AI wrote deleted a member disk from their ZFS storage pool. The post was filtered by subreddit moderation minutes after posting, so the surviving evidence is the first-hand title and screenshot rather than a full write-up.

This one went wrong. See what happened before you try it.
MoneyWent wrong

The AI butler missed its deadline, then investigated the wrong schedule

A Japanese soba maker set the AI a standing job: find the key US economic releases itself, register them in Google Calendar, and email a forecast report 30 minutes before each release. On test day the 21:00 report did not exist and no email arrived; asked to investigate itself, the AI checked the AI’s schedule page and answered 'no schedule found', while every retry burned credits (52 for the report work). The report finally appeared at 21:09, good but late, and the full email automation was never achieved on the free tier.

This one went wrong. See what happened before you try it.
MoneyPartly worked

The AI hunted my protein powder deal and vetted sellers I had never heard of

Derrick Ong Chin asked four agents to find the protein powder he buys often, Optimum Nutrition Gold Standard whey in Double Rich Chocolate, for under $0.90 an ounce. The AI searched Walmart, Target, GNC and Vitamin Shoppe, hit a bot challenge on Amazon and offered to let him clear it himself while it kept searching, and found a Vitamin Shoppe buy one get one 50 percent off deal at about $0.92 an ounce that still needed checking at checkout. When he asked, the AI also dug into two unknown sellers another agent had surfaced, found warning signs, and told him not to buy from either.

This only partly worked. Worth knowing before you try it.
WorkWent wrong

An agent without proper guardrails refunded $8,000 of his orders

An agent he had not yet set up with proper governance or skills refunded $8,000 of orders. It did ask 'You sure?' before acting, but he blanked on the confirmation and approved it. He puts the fault on his own setup more than on the agent.

$8,000one time
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Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.