Here's something that's interested me for a while because I read nearly every thread that's posted here. Obviously no one can comment on every image and not everyone likes giving critiques, and many of us are compelled to comment on the heinously bad or the mind-blowing-ly good photos, but I imagine there's a good chunk like me who offer criticism somewhat frequently for a range of images. I skip a lot of C&C that I could probably lend now and again, and I've got my reasons (I'll add them later in the thread if this takes off). What is it about an image or image post that makes you likely to skip commenting on it? I'd be interested to hear your perspectives.