You need more categories that are still easy to find.
When I do a post flag on my phone…I wish it told me my complaint had been sent! I get nothing that indicates my post report has been submitted…nothing at all.
There isn’t even a submit button. All that is there is “done”.
Mobile edition: I wish the home page had “Latest Posts” at the top of the selection list - directly above “College Admissions and Search.” “Latest Posts” is the area I choose more than any other and I don’t think I’m alone.
This would be a nice little change.
Revise the CC Terms of Service to forbid “Chance me, I’ll chance you back” threads. The blind leading the blind.
Moderators have asked for several revisions of the Terms of Service when issues come up. Nothing has changed.
Can we get that changed? 
Bookmarks: Ability to search them, sort them according to OP date, sort them according to last updated date, filter them according to whether they still have unread posts in them.
Come to think of it…some of this would be useful to do with search results as well.