-When browsing through someones posts I'd like a button at the top/bottom which takes me back to the users profile without having to backspace.
You can change the URL in your browser by removing "sa=showPosts;start=20" and you will get back to the person's profile.
It would be nice to see additional information about a profile on the post history page.
Much easier if he just opened the link on a new tab. Even without a button or editing the URL, he can turn back easily on the user's profile page.
Shortcut Key (CTRL + SHIFT + TAB)