You can find more details here:
The system is currently not fully tested and you are required to have a working key in order to use it. Please read the wiki page and follow the details there to get access.
Lots of uses:
- Track your own stats.
- Track you stats in snapshots (week to week, month to month).
- Build you own clan stat pages.
- Query the feed to generate your own stats sigs in a decentralized manner without having to futz with servers that keep crashing/dieing (>.<)
And I am sure there are other uses that I probably haven't thought of.