If that's official policy, you really need to make that obvious somewhere, like on the submit page. I really despise unwritten rules. Not to mention, how do you plan on defining what constitutes "thoughtful discussion" and what does not? Furthermore, how would you enforce it? I'm not saying I disagree, after all, thoughtful discussion is what I personally am looking for when I use hubski. However, I do think actively enforcing such a policy would be a huge nightmare. It's the same kind of subjective language that caused me many a headache as a reddit moderator. I thought the whole point of hubski was customizing your own experience - ie those who want thought-provoking discussion would ignore all of people who post humor/fluff, and those who just want a cheap laugh would ignore all of the "boring stuff..." and ideally, the two users would never cross paths. Am I mistaken in that understanding?