In the way-back-when, I spent way, way too much time on the dpreview.com forums. Some helpful folks, yes. But also some of the saddest schmucks you'll find, on the internet or elsewheres. Now, Dean Allen has brilliantly, in one semi-brief blog post, summed up the whole history of discussion on those forums. "What must the flash be? Diffuse."
Whaddya think?