FlowingData: Growth of Subreddits

FlowingData: Growth of Subreddits. “Reddit started in 2005 as a single hub to discuss and share links. In early 2006, subreddits were introduced as topic-specific categories. Growing ever since, as of September 2018, there were 892 million comments for the year so far, spread out over 355,939 subreddits.”