It would be nice if the profile picture that we use in our in-world profiles would sync across all profile picture instances, including my.secondlife.com.
One thing that's mildly irritated me for years is the fact that the profile picture which displays on my.secondlife.com is not consistent with the profile picture that people use in world. There's no way to update the picture on my.secondlife.com from the web, it can only be updated using SL's official viewer, and like many users, I use a third party viewer. This means that unless I download the official viewer specifically to update that, I'm stuck with an old picture there. I'm certain plenty of others are in the same situation and would appreciate a more consistent experience across all profile iterations.