Reddit moderators describe recent waves of spam, generated by ChatGPT or other AIs, the main issues being coordinated attacks and the speed and volume of posts
Reddit moderators say they already see an increase in spam and that the future will “require a lot of human labor.” — LC
Context & Ripple Effects
This April 2023 reporting is the earliest data point in an arc that has since run its full course: Reddit's volunteer moderators were the first to flag ChatGPT-era spam at machine speed and scale, warning it would demand heavy human labor. The concern matured into a platform-level problem — by late 2025 moderators described an AI slop surge eroding Reddit's authenticity and risking models training on their own output.
First-order effects
- Moderating subreddits shifts from policing individual bad actors to absorbing coordinated, high-speed post floods, pushing unpaid volunteers toward the labor ceiling they themselves predicted.
- Spam detection based on human writing patterns loses effectiveness when every post is cheaply unique, raising the per-post review cost for moderator teams.
Second-order effects
- Reddit was pushed to fight generation with generation — its AI-powered moderation systems now catch roughly 25K spammy posts and comments daily per its Q1 disclosure, an arms-race response to the wave moderators flagged here.
- The authenticity erosion moderators warned about becomes a product problem: if users can't trust that answers come from humans, Reddit's core value as a training-data and search source degrades.
Third-order effects
- If AI slop keeps compounding on itself, user-generated platforms converge on a structural choice between expensive human verification layers and ceding trust in their corpora — with downstream effects on whoever trains models on that data.
- Moderation economics invert: the marginal cost of producing spam approaches zero while the cost of filtering it scales, making platform-side automated defenses a permanent operating expense rather than a tool.
The trend: User-generated platforms are moving from volunteer-led moderation to AI-versus-AI defense as generative tools industrialize spam at near-zero cost.