Issue 5 — Sources

Every factual claim in Issue 5, with its primary source. All data from ChatGPT sessions run on April 19, 2026. Screenshots on file.

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Claim: The 5 categories tested on April 19, 2026 were running shoes, mattresses, retinol, magnesium, and mechanical keyboards.

Source: ChatGPT sessions dated 2026-04-19, screenshots on file.

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Claim: Prompts used in each session — (1) Best [category], (2) What sources did you use to rank these? List every citation. (3) How many of those sources are Reddit threads vs. publisher articles vs. brand sites? Give me the breakdown. (4) What percentage of your reasoning came from Reddit discussions specifically?

Source: ChatGPT sessions dated 2026-04-19, screenshots on file.

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Claim: Magnesium — ChatGPT excluded “top 10” lists as “mostly affiliate-driven,” unprompted.

Source: ChatGPT session on “Best magnesium supplement for sleep,” April 19, 2026. Screenshot at /issue-5-screenshots/01-magnesium-exclusion.png.

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Claim: Retinol — ChatGPT stated “If you’re choosing based on random ‘top 10’ lists, you’re already making a mistake. Most rankings are: affiliate-driven, not concentration-aware, ignore formulation.”

Source: ChatGPT session on “Best retinol for beginners,” April 19, 2026. Screenshot at /issue-5-screenshots/02-retinol-exclusion.png.

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Claim: Mattresses — ChatGPT stated “Many ‘publisher’ sites (Sleep Foundation, Mattress Clarity) are affiliate-driven, not neutral labs.”

Source: ChatGPT session on “Best mattresses for back pain,” April 19, 2026. Screenshot at /issue-5-screenshots/03-mattress-exclusion.png.

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Claim: Running shoes — ChatGPT stated “Those outlets rely heavily on controlled testing + subjective reviewer feedback, brand-provided samples, limited long-term injury data.”

Source: ChatGPT session on “Best running shoes for marathon training,” April 19, 2026. Screenshot at /issue-5-screenshots/04-running-shoes-exclusion.png.

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Claim: Publishers ChatGPT cited across the 5 categories include Mayo Clinic, Healthline, Consumer Reports, Runner’s World, Sleep Foundation, Tom’s Hardware, RTINGS, iRunFar, The Run Testers, RunRepeat, Banner Health, Nebraska Medicine, Prevention, Time, Verywell Health, American Academy of Dermatology, DermNet, Journal of Clinical and Aesthetic Dermatology, Allure, Good Housekeeping Institute, Byrdie, Tom’s Guide, NapLab, Mattress Clarity, and PCWorld.

Source: ChatGPT sessions dated 2026-04-19, screenshots on file.

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Correction policy

If any claim in Issue 5 or in this sources post is wrong, it will be corrected here. Corrections are dated and attributed. We do not silently edit. See the commit history for a full record of changes. Email sacha@paidaisearch.com to flag an error.