Is the picture an influence when you respond to a discussion?

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While looking at the 'discussions with no responses' area, and viewing the list of started discussions, I noticed that my eye was more attracted to the people who had an image as an avatar,rather than those which kept the green image of no avatar ...and I don't think it's because I can't see the person or so, and I am curiouse how he/she looks like, or that I am influenced by the person's aspect but it's more like..you get to think that if that person was too lazy or got no interest in adding a pic to the profile,not necessarily a personal picture, even an avatar..then they might be too shallow in their participation also.. What do you think?and are you also tempted not to give too much attention to the people with no avatar?.. I specified 'tempted not to'..because I am just tempted not to, but I don't do so, after the first view goes away, I focus on the subject of the discussion and only then decide if to reply or not