I wholeheartedly agree with the idea that the best benefit we can give and receive. And I think the web community is dangerously moving away from this potential.

I actually just wrote an article about that fact, focusing on something similar: http://bckmn.com/a-meaningful-web-through-comment/

I think that, in order to make the web a better place for our online lives, we need to not only embrace the faculties for commentary, but also discourage superficial interaction.