2. AskReddit
It is a default subreddit. It means whenever you open a Reddit account, you get automatically subscribed to it. The purpose of this AskReddit is to answer questions by having discussions. But that does not mean that it is only heavy questions and answers. Light weight topics are welcome, as well as NSFW topics! Being one of the post popular subreddits, AskReddit is one of the best subreddits ever.
