Taking away options that so many users enjoy is a mistake. Seeing that others have the opposing view I can see the validity of making it an option in the acp. But I think either way this will be one of those change that will upset a lot of people.
I wouldn't be surprised if someone else has suggested this. And I mentioned it in another thread but I'm not sure if the staff saw it. Me and my forum members REALLY would like to continue having BOTH a profile pic, AND an avatar. That's the way it is in 3.1.x and I really don't see how taking that away is an improvement. Both serve different functions and this is really the only thing I dislike about the new software.