Why does so many people have robot avatars?
It's the replacement for the Gravatar default (the random geometric colours). We thought it's more fun than that :)
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It's an invasion ;)
For users who did not setup their gravatar accounts they get random images with robots.
I for one welcome our new robot overlords.
Ah, I see!
I first thought it was related to google plus or something.
i like seeing all the robots.