What's with the different color exclamation points instead of avatars in Yahoo answers?

This is the explanation given by Yahoo! themselves:

You may have noticed we have added a little bit of color to the grey face icons which show when no avatar or image is selected.

Yahoo! is in the process of updating these default images across the network. If you haven’t chosen an image or if your Pulse profile is set to `hidden`, you’ll see one of the five variations of this new image to represent you. The colors are teal, blue, green, orange and purple. It’s totally random which one you get and is nothing to do with your gender or activity.

Now, I notice they do not give you a chance to change your point, which I suppose would cause all kinds of chaos around here

Two weeks ago Yahoo changed the default avatar to the five colors of exclamation points.

to create an avatar:

Click "My Activity" at top of page

Select "Edit My Preferences"

Click "Update photo or avatar"

Follow instructions to select your photo/avatar

Click "Submit" on bottom of original page when done

To make a carton avatar:

http://avatar.yahoo.com/

Make sure your pulse profile is not hidden.

;o)

users that have no avatars/image on their profile here so they get random colors exclamation mark created solely from Yahoo. for grey faces, they prefer to hide their profile

It's the new default avatar that is replacing those gray smiley faces.

It's the new default image.

Those are default avatars.

go to the yahoo answers blog.

It is all explained there, and welcome back!