At least make home page more relevant, most of the top posts haven't been updated for months... Add a simple time limit for last week or month there
Post
Replies
Boosts
Views
Activity
From the explorations using StackOverflow and GitHub search syntax, you can search for: Individual tag: [tag name]
User: user:name
My page: user:me
Posts under specific tags: [tag1][tag2] query
Man, this red code highlighting is painful...