You're on fire, man! Any thought to putting this up on github so other PHP devs can play around with it as well? Some things I'd like to see which may or may not relate this specific tool:

Similar to the rich list, I'd like to see one sorted by:
Curation Reward
Post Reward
I'd love to see change over time graphs on various things including:
VESTS
Steem Power
Curation Rewards
Posting Rewards
Number of Posts
Number of Votes
This is making me jealous because there's a part of me that wants to take a sabbatical from my company and work on tools like this all day long. Very well done! Keep it up!