Recommendation systems respond to attention, relevance, interaction, freshness, and negative feedback—not campaign intent. Coordinated participation can create momentum, while identical repetitive posts can cause fatigue.
Track reach per participant, engagement by reach, share velocity, unique contributor ratio, click-through, and negative feedback. Compare caption and timing groups with tagged links, and use medians so a few large accounts do not distort results.
Healthy virality expands distribution without sacrificing interaction quality or trust. Optimize the message and participant value before increasing volume.
