The most expensive influencer marketing mistake isn't picking the wrong creative angle: it's paying a creator whose audience was never real to begin with.
Signs of fake or purchased followers
A sudden, unexplained spike in follower count, an engagement rate that's implausibly low or suspiciously uniform across every post, and a follower base concentrated in countries far outside a creator's stated audience are all common red flags worth checking before signing anything.
Engagement pods and inflated interaction
Comment pods, groups of accounts that comment on each other's posts to inflate engagement, tend to produce generic, interchangeable comments ("Amazing! 🔥", "Love this!") posted within minutes of each other. A quick scroll through recent comment sections often reveals this pattern immediately.
Brand safety goes beyond follower quality
Reviewing a creator's posting history for content that conflicts with your brand values, past controversies, or inconsistent messaging matters as much as audience authenticity: a creator with a perfectly real audience can still be the wrong fit if their public history creates risk.
Building vetting into your process
Vetting should happen before a contract is signed, not after a campaign underperforms. A short, consistent checklist (audience authenticity, engagement patterns, content history, and past brand partnerships) catches most issues early.
Vetting is a standard part of how our influencer marketing team sources creators, not an optional add-on after a campaign is already underway.