&gt; Reddit, for example, launched without the ability for users to create their own subreddits, and many would describe that as one of the key reasons of Reddit&#x27;s growth. I believe they actually launched without commenting, but I can&#x27;t find a source on that.<p>reddit launched with only voting and submitting of links (no self posts).  Commenting, subreddit creation, self posts and all that was added years after launch.<p>(Source: I was there :) )