Reddit's anti-spam infrastructure has undergone a significant architectural overhaul following its IPO. The platform now employs a multi-layered heuristic system that evaluates accounts across dozens of behavioral signals simultaneously.
The Signal Stack
Reddit's detection system analyzes posting cadence, comment-to-post ratios, cross-subreddit velocity, and semantic similarity between posts. Any deviation from organic community behavior triggers a soft shadowban before escalating to account termination.
The key insight: legitimate agency work is indistinguishable from genuine community participation because it IS genuine community participation.