[vertex-four]

I'm a reddit user, and I find that it doesn't encourage ongoing discussion, even in the smaller subreddits - a thread is pretty much frozen in stone after a day or two, even if technically people can post there for six months, so people keep starting new threads on the same topic (often covering a large part of a subreddit's front page with discussion of the same subtopic, preventing other discussion) but without history or interlinking. The problem is that posting to a thread doesn't "bump" it, so if you want people to see what you said the only option is a new thread.