As I've said before, Su's servers had no issue sending their stats to me and had two different keys as expected. The issue was there was no player data coming into the requests before, whereas now there is data. I still can't explain that.
As for the server keys, there should be one per server using the -sessionid parameter that ItsMe mentioned. That's so servers can be uniquely identified. Player keys work the same way (using the same library Mr. Bougo linked). That is how stats can track you across games even if you were to change your nick. The game manages your player key for you automatically, but you can configure how it uses your key in-game. You can read more about this and the issues around keys here.
As for the server keys, there should be one per server using the -sessionid parameter that ItsMe mentioned. That's so servers can be uniquely identified. Player keys work the same way (using the same library Mr. Bougo linked). That is how stats can track you across games even if you were to change your nick. The game manages your player key for you automatically, but you can configure how it uses your key in-game. You can read more about this and the issues around keys here.
asyyy^ | are you releated to chuck norris?