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Now I am not saying that all people that share a picture of themselves on the Internet are the people they represent themselves to be.  That would be extremely naive. It is just easier to connect and build trust with a person rather than an avatar.

the default "egg" on Twitter and silhouette Facebook. The default says: “I can’t be bothered to upload an image.

But when somebody has an image that is not an actual photo of them, I hesitate and usually do not connect. Why are they hiding? Why use a dog or flower or building, or famous person, or logo instead?