I'm pretty sick of these avatars.
The text's grayish colors throw off the background colors, the shine looks boring, and they're so simple that they make me mad. I made one myself in less than two minutes. If roundheads weren't annoying enough, these are.
To tell you exactly what I did: I made a black layer, used a gradient on it (the gradient is the target-like thing), and put a shine and some text. The text effects I applied are showed.