If you use Flickr, you probably get these kind of comments, wherein someone just copy and pastes some nonce about having seen your photo in some group. What the hell is that all about? I get these comments and am like "Good for you! You saw a photo!". I usually delete them and block the person, because if you're not going to give me at least a real comment, then don't bother. I don't care if/where you saw the photo.
And, while I'm on the subject, I'm not participating in any of your stupid "Award/Comment" things.