I'd say Reddit. There are some heavy moderated subreddits for insightful discussions, like reddit.com/r/truereddit. Because Reddit has a voting system like HN, quality content is being upvoted and shown as first.
If you search you can probably find some more subreddits with less general content. And HN is of course a really great website for such discussions, with a lot of highly intelligent people that post quite lenghty comments. HN is probably my favorite website when it comes to discussions.
If you search you can probably find some more subreddits with less general content. And HN is of course a really great website for such discussions, with a lot of highly intelligent people that post quite lenghty comments. HN is probably my favorite website when it comes to discussions.