Flickr discussions in three essential sentences:<p>"Great composition"<p>"Nice shot!"<p>"~~o 8 You've been awarded a useless online award by a self-proclaimed expert, join the group now! 8 o ~~"<p>I agree to the author that faceless communication does not stipulate understanding of finer engineering points. But, sorry, just about any (troll-ridden or not) group in comp.* on my memory was vastly better with quality of comment than that. Flickr is just one big circle-pat-on-the-back.