Sure is. My best guess, assuming it's not a bug, is that someone somehow managed to get an offensive-looking Identicon and complained loud enough so they removed them.
In any case, I really hope they return. There is the username, of course, but it is a nice touch to have a mostly unique simplistic avatar for those who don't supply their own profile picture.
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Update: It looks like the Identicons might be back.
In any case, I really hope they return. There is the username, of course, but it is a nice touch to have a mostly unique simplistic avatar for those who don't supply their own profile picture.
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Update: It looks like the Identicons might be back.