Must admit that this seems a bit creepy to me! I guess he's just amused but I wonder if it starts him thinking, is this game monitoring me personally? How else can I be targeted?
If he rolls a Yahtzee, you could make it pop up a message that says "Yippee Ki Yay, Roy!"
Because of my near-encyclopedia knowledge of 80s pop culture, I just had a bunch of ideas. Then again, who knows how many 80s celebrities are playing your game.
Also, even if there were user accounts, this is a one man shop, so it would be hard for me to build a firewall between myself and myself :)
Just wondering, as one one man shop, did you have to negotiate for rights to the Yahtzee name & mechanics?
But obviously he chose to tweet about it in the first place, so it presumably doesn't bother him much.