I use. I don't have a Facebook account, and I haven't really used other online communities extensively. I know Reddit is one of the biggest, if not the biggest on the internet. What makes CB different than something like Reddit? Is it the community? The format? The more singular nature of CB? I looked at Reddit just now and it seemed like a million different subforums. It was confusing. Maybe I'm just used to CB and view the rest if social media through the lens of that experience.