Back in high school, someone set up a site for (anonymous) feedback for everyone in class. It took one day to explode and turn into 4chan, so the school administration had to shut it down.

I loved it. It was the first time someone actually told me some of the bullshit I've been doing. (For example, like the people in Eliezer's example, I started showering a bit more frequently. Didn't help that my best friend literally has no sense of smell.) I'd love to get feedback that useful again.

So I'm very much in favor of any such norm or setup. Googling for a bit, the best existing setup I found is whatiswrongwith.me. (Feel free to rant about me). I'll probably look around some more later when I have more time.