Channels won't have varying rules like the subreddits themselves, but they will have keyword filters, rate limiting, bans and locks to prevent people from abusing the system. And similar to the extensions you can get for some chat apps, there will be a programming kit to enable subreddit-specific features.

Reddit is straightforward in explaining the addition of chat to Wired: it's all about fostering community collaboration. The company saw how people came together when creating the communal r/Place mosaic, and wanted to give people a place to discuss things in real time within Reddit rather than driving them to Slack or other tools. This gives users a reason to stay on Reddit for the entire process, offering both a more consistent experience and helping the site's bottom line. While it's not about to supplant Reddit's usual threaded conversations, it could be a helpful supplement when regular posts are too slow.