Why ecommerce and Reddit fit
Product questions like "best X for Y" and "is Z worth it" get answered on Reddit in the buyer's own words, and those threads rank in Google and feed AI recommendations. If your product is a genuinely good answer to a real question, Reddit is where that gets recognized.
The communities that matter
Look beyond generic subreddits to where your buyers actually are: r/BuyItForLife, category and hobby subreddits, and product-specific communities. For sellers, r/ecommerce and r/shopify are useful for learning, but your customers live in the category subreddits.
The moves that work
Find threads asking about products like yours, add a genuinely useful answer, and mention your product only where it fits, with a reason. Real recommendations from a disclosed brand account age well and keep converting.
What to measure
Track whether AI tools name your product for shopping questions, and whether the threads mentioning you rank. That is the ecommerce scoreboard. The homepage here explains the mechanism, and Upvote Labs runs this for online stores and reports the citations.