-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.
-When browsing through someones posts I'd like it if there was a sorting feature so that I could select a specific board and see all the posts the user has made on that board.
You can go to
IgnoreBoards, check all the boards you
don't want to see posts in, and click 'change profile' at the bottom, then visit the person's post history. Those boards will be entirely unavailable to you until you unignore the boards you selected.
This is currently setup in a way that is difficult to select/deselect many boards at once. Perhaps it would be helpful if there was a 'select/deselect all' button, or a way to select/deselect all child boards of a parent board that someone wants to ignore.
All of these features are likely to help campaign managers weed out poor posters (by making it easier to review their post history), which ultimately will benefit the forum.