Reddit Fights Marketers Seeding ChatGPT and Gemini Answers

There is a quieter story underneath every ChatGPT product recommendation you've read lately, and Reddit is where it's playing out. The Verge's Mia Sato reports that skincare brands, record labels, weight-loss apps, and a growing cottage industry of marketing agencies are seeding Reddit threads with posts engineered less for human readers than for the large language models that scrape the site and quote it back as trustworthy community advice.

The scale Reddit itself puts on the problem is worth sitting with. The company says its updated automated systems now catch about 25,000 spammy posts and comments per day in the first quarter of 2026, that user exposure to spam is down roughly 20% year-over-year, and that it is blocking on the order of 23 million spam views and revoking close to 2 million inauthentic votes daily. Community moderators, still unpaid volunteers, drove more than half of post and comment removals in the back half of 2025. Reddit's pitch is that its own large language models can spot the coordinated, subtle patterns older filters missed.

The reason marketers care so much is that OpenAI and Alphabet both pay Reddit for content access and their chatbots cite the site heavily as a source of live human opinion. That has spawned a discipline the industry is calling generative engine optimization, positioned as the AI-era successor to SEO. Shanzila Ahmed of the agency ReachLLM told reporters her team has landed client posts inside ChatGPT within a day and, when Reddit removes them, the strategy is simply to keep pushing out new content at regular intervals. A GEO-focused startup called Profound is reported to have reached a billion-dollar valuation this year, which tells you where the marketing money is moving.

The honest caveat is that the numbers here are almost entirely Reddit's own, framed to sell the platform's licensing story to OpenAI and Google. The reporting does not give you an independent read on what share of chatbot citations are already poisoned, or which categories beyond skincare and dating apps are being gamed hardest. What it does give you, via a Cornell Tech study cited by Forbes, is a concrete floor for how cheap the attack is: as few as 13 words embedded in a Reddit comment were enough to steer an AI-generated answer, in one test making a fake dating app the top recommendation.

If you run a consumer brand, the practical shift is that your reputation is increasingly being written inside answers you cannot see, on a surface Reddit and its chatbot partners are quietly refereeing on your behalf.