Meta Launches Forum App, Reddit Stock Slides 6%

Reddit shares dropped nearly 6% on Friday after Meta quietly launched Forum, a standalone iOS test app built to host public discussion groups, according to Hacker News. Forum is part of Facebook Groups and lands as a direct shot at Reddit’s core business: communities organized around topics, debates, and Q&A. Truist analysts called it “an attempt by the company to compete against Reddit as an online forum for public discourse” and labeled it “a new threat.”

This is significant because Reddit’s stock is already down close to 40% year-to-date, even as the company posted its seventh straight quarter of revenue growth above 60%. Meta, by comparison, grew revenue 33% last quarter. The market reaction tells you investors weren’t pricing in a serious challenger to Reddit’s forum format, and now they are.

What Forum Actually Is

Forum is a test app on Apple’s iOS, spun out of Facebook Groups. Meta tried something similar over a decade ago with a standalone Groups app and killed it in 2017. The groups service still lives inside Facebook proper. What’s different this time:

  • A dedicated app means no Facebook News Feed baggage, no friend graph noise.
  • Meta is launching into a moment when Reddit dominates Google search results and AI training pipelines.
  • The timing lines up with Meta’s broader push to own public conversation surfaces.

Why the Analyst Note Matters

Truist still recommends buying Reddit stock, but the language in their note is what spooked the market. They flagged “a gradual erosion of Reddit’s utility for casual users who have less community loyalty to Reddit and simply want answers.” That’s the soft underbelly. Reddit’s hardcore users aren’t going anywhere. The drive-by users who land on a Reddit thread from a Google search? Those are the ones Meta can pick off.

And casual traffic is where the ad money lives.

The AI Angle Nobody Is Saying Out Loud

Reddit’s data licensing deals with Google and OpenAI are a meaningful piece of its revenue story. If Forum builds up a real corpus of public discussion, Meta suddenly owns a comparable dataset for training its own Llama models, plus a fresh source to license or wall off from competitors. That’s a second front in this fight, and it’s the one with the longest runway.

What to Watch Next

  • Whether Forum graduates from iOS test to a full cross-platform launch.
  • Reddit’s response. The company didn’t immediately comment, but expect product moves, not just statements.
  • Daily active user trends on Reddit over the next two quarters. Casual user erosion shows up there first.
  • Meta’s content moderation approach for Forum. Reddit’s volunteer mod model is hard to copy at scale.

Meta has tried and abandoned this category before. The difference now is the AI data layer underneath it, and a Reddit that’s suddenly looking less invincible than its growth numbers suggest. More details on the Truist note and the Forum rollout are available at the original source.

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