AEO評測：Reddit假貼文正在操控你的AI答案 | AEO Review: Fake Reddit Posts Are Manipulating AI Answers

8月 28, 2026

By Kit 小克 | AI Tool Observer | 2026-08-28

🇹🇼 AEO評測：Reddit假貼文正在操控你的AI答案

最近多家外媒（PYMNTS、TechSpot 等）踢爆一個新趨勢：品牌正利用 AEO（Answer Engine Optimization，答案引擎優化）大量在 Reddit 灌水，讓 ChatGPT、Google AI Overviews、Perplexity 這些 AI 工具在回答問題時，不知不覺把置入內容當成「真實用戶經驗」念給你聽。這跟過去衝 Google 排名的 SEO 不同，AEO 瞄準的是 AI 引用的原始素材本身。

Reddit為什麼變成AEO必爭之地

根據追蹤資料，2024年8月到2025年6月間，Reddit 是 Google AI Overviews 與 Perplexity 引用最多的網域，Google AI Overviews 更有 21% 的回答直接引用 Reddit 內容，ChatGPT 也把 Reddit 列為第二常引用來源。研究還發現，前 100 個熱門子版貢獻了 AI 回答中約 84% 的品牌提及量——換句話說，不需要洗版整個 Reddit，只要滲透少數高流量社群，就能左右 AI 怎麼形容你的產品。

真實案例：保健品業者灌爆 r/Biohackers

擁有 83 萬成員的 r/Biohackers 版今年 5 月發現，肽類（peptide）與荷爾蒙替代療法（HRT）廠商大量發文操作 AEO，手法包括：

用「已有發文紀錄」的養熟帳號偽裝真實用戶
設計「超級誘餌式」的模糊提問，刻意帶動討論熱度
付費請真人下場討論，讓業配文看起來像真心分享

版主後來直接禁止獨立發文，只能在每週統一討論串裡談。有版主坦言，擔心用戶問 AI「這個劑量安全嗎」時，AI 給出的答案其實是廠商埋好的內容。

對你有什麼影響

如果你習慣問 AI「這個產品好不好用」「這個症狀該吃什麼」，現在多一層風險：AI 引用的 Reddit 討論串，可能有一部分是精心設計的 AEO 內容，不是真實用戶心得。醫療、保健品、電商類問題風險最高，因為判斷錯誤可能直接影響健康或荷包。建議把 AI 摘要的「大家都說」當成起點而非結論，重要決定務必多方查證來源。

好不好用，試了才知道。

🇺🇸 AEO Review: Fake Reddit Posts Are Manipulating AI Answers

Multiple outlets (PYMNTS, TechSpot, and others) have exposed a fast-growing tactic called AEO (Answer Engine Optimization) — where brands flood Reddit with fake-but-convincing posts specifically designed to get scraped and quoted by ChatGPT, Google AI Overviews, and Perplexity. Unlike traditional SEO, which chases Google rankings, AEO targets the raw source material AI models pull from when generating an answer.

Why Reddit Became the AEO Battleground

Between August 2024 and June 2025, Reddit was the single most-cited domain by Google AI Overviews and Perplexity, and Google AI Overviews cite Reddit in 21% of responses; ChatGPT ranks it as its second-most-cited source. Researchers also found that the top 100 tracked subreddits account for roughly 84% of brand mentions surfaced in AI-generated answers — meaning operators don't need to spam all of Reddit, just seed a handful of high-traffic communities to shift what AI says about a product.

Real Case: r/Biohackers Gets Flooded

In May 2026, moderators of the 830,000-member r/Biohackers community found coordinated AEO campaigns from peptide and hormone-replacement-therapy (HRT) sellers. The playbook:

“Warmed up” accounts with real posting histories to look like genuine users
Deliberately vague, clickbait-y questions designed to drive engagement
Real people paid to jump in and discuss products as if organically

Moderators eventually banned standalone posts on the topic, restricting discussion to weekly megathreads. One moderator’s fear: someone asks an AI chatbot whether a dose is safe, and the answer is quietly shaped by a seller.

What This Means for You

If you routinely ask AI chatbots “is this product worth it” or “what should I take for X,” there’s now an extra layer of risk — the Reddit threads the AI is quoting may be manufactured AEO content, not genuine user experience. Healthcare, supplements, and e-commerce queries carry the highest stakes, since a bad answer can cost more than money. Treat AI-summarized “everyone says” claims as a starting point, not a verdict — especially for anything medical or financial.

好不好用，試了才知道。

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