People who made comments without accounts will receive an email soon about this
Gravatar support has been switched on with Kyle’s Blog!
What’s that mean? When you have a WordPress.com account you can have an avatar by your comment, but now if someone isn’t logged in or registered but they have a Gravatar attached to their email account that will show up by their comments too. So hopefully, you may see a few new faces around! Gravatars help build a sense of community around posts, and keep people coming back to the comments.
Gravatars make the comments look more “real” and they look great. If you plan on commenting without an account, I highly suggest you sign up at Gravatar.com!