Thats a cool tool! the old whitepapers had a graph on your diminishing power when it comes to upvoting, and at one point it seemed like upvoting more than 10 times a day would diminish the worth of your upvote. The new steemit whitepage just came out and im going through it now to see what changed.

Link here if you are interested: https://steem.io/SteemWhitePaper.pdf