We kinda already have that. In the 'taskbar' you have 'my image comments' that's not password protected for you only, you can look at any users comments etc.
It's a bit annoying in that you have to edit the url path by hand, but i dont really want to clutter up the UI with icons next to peoples names with all the options that people might wanna see.
eg url:
on another note, where
Forum:
plus613.net