Here are some of the bugs/inconsistencies/improvements for the usage of Gravatars in the Chat system, identified by me and others:

**Regular usage**:

* Hovering over your own Gravatar shows your UserID, while hovering over other users' Gravatars shows their Display Names. **UPDATE:** It turns out that if you join a new room, it actually shows your Display Name at the beginning. Not sure why the first room doesn't. **UPDATE #2:** Jared Harley wrote in the comments that:

> 
> I discovered that I can see everyone's
>  usernumber on hover, you just have to
>  hover above and below the user's
>  image. I'm guessing it's a problem
>  with a div or something
> 
> 
> 

* The fly-in and fly-out motion of Gravatars when users enter or leave a chat room is distracting - instead of displaying a large motion effect, I think Gravatars should just fade in/out from the "people here" bar itself.

**Bouncing on mentions**: Whenever you are mentioned by someone in a message on Chat, your Gravatar starts bouncing up and down, prompting you to either say something or click the Gravatar to stop the bouncing.

* Have the bouncing end after a few seconds - currently, the bouncing never ends unless you click the icon or say something in Chat, which can get somewhat annoying, especially if you don't want to take your hands off of your keyboard. I think the bouncing should end on its own after 5 seconds or so.
* Make the bouncing more useful - when we click the Gravatar to stop the bouncing, it should do something more useful, like highlighting which message was the one that triggered the bouncing in the first place.