I think the thing is that bugs us about those sorts of topics is that a lot of those "discussions" weren't actually discussions at all, and that's why they got "Gringoed." They're basically GAMES, where one person posts something, then someone else posts a response that doesn't actually contribute to any kind of meaningful *discussion*... instead, what you get is a seemingly endless thread of YouTube videos (or links to YouTube videos for those who can't figure out how to use the embed button), one after the other, ad nauseum. If you want to post games, do it on Facebook, or use the Chat room (as he suggested) to post stuff like that. The Forum should be a place where people can go and actually read some interesting, thought-provoking topics of discussion, and not find topics with hundreds of mindless responses that say nothing at all about anything. That's what he means by "raising the bar." Make sense?
Anyway, that's my POV.