[brianmiddleton]

You can also look at it as discussion forums for pretty much any topic with single sign-on. Think of anything and you'll probably find it plus porn of it on Reddit with a quick search.

[seanalltogether]

Right, I join in on the Conan and sunny in philly subreddits, and these forums simply do not exist outside of reddit, literally nowhere.

[kybernetikos]

The single sign on / all my comments and posts in one place aspect is definitely valuable too, good point.