I don't think whether or not anything will change will come down to "Is it hard to do", but more along the lines of "Is it worth whatever effort it will take", and to be completely honest? I really don't feel like it'd be worth the effort, as small as it potentially might be, to make any change over how this site handles the forums with usernames/profile pictures, seems like more of a time sink then anything to me.
Then again, only time will tell if anything will change, but I somehow doubt more threads like this will be anything more then a drop in the ocean of reasons.