I'd say their community is their primary _asset_. All products are (ought to be?) built around an advantageous asset, whether it is exclusive data or a novel workflow or special insight.
But you design, engineer, build, and test a product, not a community. Though we do try.
Hmm that's a pretty ephemeral "asset"... and it's an asset that is directly tied to your ability to pull funding. Even if you technically don't directly mold the community, it doesn't do you any favors to try and think of something else as your "product" just because you're uncomfortable with the definition.
I definitely didn't claim that value only came in the form of software... in fact I think I claimed the opposite of that in saying that reddit calling their platform their product was useless and unhelpful. They have one thing that is attractive to users, advertisers, investors, and creators. That thing is their community. Pretending anything else is what they should try and capitalize on is silly.
What? So your advice is to knowingly ignore what actually makes your site money and just call some random other feature "the product"? How would Reddit admins/CEOs ever make decisions using that advice?