• implement overview (mixed comments + posts) for user views
• implement unified inbox (mixed replies, mentions, private messages)
• add communities moderated to user view
• add sort/listing widgets to browse communities for nice sorting feedback
• add search current user command
• add search current community command

I thought it might be nice to add drop-down sort/listing widgets to the top of all feed-based views, roughly similar to the web client, but it seems that the emacs widget library doesn't allow placing multiple menu widgets on the same line. :/

EDIT: turns out it's possible, so i'll add them to the main views.