Latest / Social Media Marketing with Fexingo: Instagram, TikTok, LinkedIn, and Platform Strategy / Why Brands Are Building Private Social Communities
Transcript
- Lucas: So Sephora runs a private community called Beauty Insider on its own platform — no ads, no algorithm, just a walled garden for its most loyal customers. And what's interesting is, they've essentially turned their best customers into an unpaid product development team. Luna: I've seen that. Members vote on new products before they launch, share skincare routines — it's basically a focus group that runs 24/7. But the real question for me is: does this actually move the needle on revenue, or is it more of a brand halo play? Lucas: Great question. There's data from a few of these programs — and it's not just Sephora, Peloton does this too with its official Facebook Group — and the numbers are pretty striking. Community members spend, on average, two and a half times more than non-members. And their retention rate is significantly higher. Luna: Two and a half times? That's massive. But I wonder if that's just selection bias — people who join a community are already more engaged to begin with. Lucas: That's the common critique, and it's valid. But when you look at controlled studies — like the ones from Harvard Business Review on community-driven brands — they controlled for prior spending. The community itself drives incremental lift, not just self-selection. Luna: So what's the mechanism? Why does a private community outperform a public feed? Lucas: I think it comes down to three things. First, exclusivity — being invited or having to qualify creates a sense of ownership. Second, the conversation is richer because it's moderated and focused. And third, the brand gets first-party data that's incredibly specific — what people actually say, not just what they click on. Luna: That third point is huge with the whole cookie deprecation shift. First-party data from conversations is way more valuable than any tracking pixel. Lucas: Exactly. And it's not just data — it's context. When someone posts in a community, 'I tried this moisturizer and it broke me out,' you get the exact reason, the product variant, the skin type. That's gold for product teams. Luna: I've seen beauty brands reformulate products based on community feedback. That's a direct line from conversation to R&D. Lucas: So the episode is really about this shift from broadcasting to hosting. Brands are realizing that the algorithm owns the relationship on Instagram or TikTok. On your own community platform — whether that's Discord, a private Slack, or a branded forum — you own the relationship. Luna: But there's a cost. Moderating a community takes real human hours. You can't just set up a Discord server and expect magic. Lucas: Absolutely. The brands that do this well dedicate a team — sometimes a full-time community manager per thousand members. It's not a set-it-and-forget-it channel. Luna: And there's the risk of it becoming an echo chamber. If you only hear from your most vocal fans, you might miss the silent majority who have different needs. Lucas: That's a real risk, and it's why smart community managers also do regular surveys inside the community, not just rely on organic posts. But the upside is that you're building a moat — a group of customers who are invested in your success. Luna: Speaking of investment — I think it's worth mentioning that this kind of deep-dive content is possible because of listeners like you. If these marketing conversations have sparked something you've actually used, a handful of listeners chip in monthly through buy me a coffee dot com slash fexingo, and that's what keeps this show ad-free and independent. Lucas: Yeah, it genuinely makes a difference. We don't run ads, and that means we can go deep on exactly the topics that matter, without worrying about pleasing sponsors. So if you've gotten value from any of these episodes, that's where you can help keep it going. Luna: Alright, back to private communities. So we've talked about Sephora and Peloton — what about brands that are smaller? Can a company with five thousand customers justify a private community? Lucas: I'd argue they can, but they need to be realistic about scale. A community of even 200 highly engaged members can yield more actionable feedback than a thousand Instagram comments. The key is to keep it tight and focused. Luna: So what's the minimum viable community? Like, when does it make sense to invest in a dedicated platform versus just using a Facebook Group or a subreddit? Lucas: I'd say if you have a product that people feel strongly about — something they use regularly, talk about, or have opinions on — then a community makes sense. For commodity products, less so. But for anything with a passionate user base, even a small one, a private community can be a powerful retention tool. Luna: Let me push back a little. Isn't there a risk that you're just preaching to the choir? Your biggest fans join, but you're not reaching new people. Lucas: That's true, but the counterargument is that your biggest fans are also your best marketers. When they feel a sense of belonging, they're more likely to recommend your brand to friends. word of mouth from a community member is way more credible than any ad. Luna: So it's not just retention — it's also indirect acquisition. I can see that. Lucas: Exactly. And the beauty of a private community is that you can invite members to bring friends. Some brands have referral programs inside their communities, and the conversion rate is often higher because the invite comes from a trusted source. Luna: What about platform choice? Discord versus Slack versus a custom forum — what do you recommend? Lucas: It really depends on your audience. Discord skews younger, gaming, and tech. Slack is more professional and works well for B2B communities. A custom forum gives you full control but requires more investment. For most brands starting out, a private Facebook Group is the easiest entry point because people already have the app. Luna: I've seen some B2B brands use Slack communities really effectively. Like, a SaaS company with a user group in Slack gets real-time feedback on features. That's invaluable. Lucas: Yeah, and it creates this virtuous cycle. Users feel heard, they get early access to new features, they become more loyal, and they contribute to product roadmaps. It's a classic community-led growth model. Luna: But there's a dark side too — toxic communities. If moderation isn't tight, a community can become a negative echo chamber. We've seen that with some brand communities that turned against the brand. Lucas: That's a real risk. The solution is proactive moderation — clear guidelines, active community managers, and a zero-tolerance policy for harassment. But also, listening to criticism constructively. Sometimes a community revolts because the brand actually made a bad decision. Luna: So it's a double-edged sword. But when done right, the upside is enormous. Lucas: Right. And I think we're going to see more brands go private this year. With algorithm changes and privacy regulations, owning your audience is becoming a strategic imperative. Luna: What about metrics? How do you measure the ROI of a private community beyond retention and spend? Lucas: You can look at net promoter score, customer lifetime value, support ticket deflection — if community members help each other, that reduces support costs. Also, content generated inside the community can be repurposed for marketing. Sephora uses community reviews as social proof on product pages. Luna: That's smart. So the community becomes a content engine as well. Lucas: Exactly. And that content is highly authentic because it's not generated by the brand. A community member's photo of them using your product is worth more than a professional photoshoot. Luna: Alright, I'm sold. But I want to hear from our listeners — have any of you built a private community for your brand? What worked, what didn't? We'd love to hear your stories. Lucas: Yeah, you can reach us on social or through the show page. And if you're thinking about starting a community, start small. Pick a platform, invite your top 50 customers, and see what happens. Luna: Great advice. Next episode, we'll look at how brands are using ephemeral content — stories that disappear — to create urgency and drive action. Lucas: That's a good one. Until then, keep building those connections.