Open letter to Flickr developers,
Generally, I agree, writing with full capitalization (aka all caps) violates computer etiquette much to the chagrin to the computer literate. The illiterate obliviously walk into this trap. Lack of any capitalization lacks the capability to cause the same anger.
That said, there are legitimate uses of full capitalization. Batman style effects like “KAPOW” wimp with “Kapow”. So, your changing the text I write in a comment box on your web site from “CRUNCH!!” to “Crunch!!” caused me to delete the comment. So, now, my friend will not receive what I perceived an apropos remark to a picture because your site refuses to allow me to write what I wrote.