Viewing profile — yavgcnk

Minor, but no it's 1/(8 choose 4) = 1/70 because there are 4 tea-first, 4 milk-first, and the lady tasting tea knows this. Once the locations of the four tea-first cups are decided…

Can someone help me understand what functionality this gives to the website makers over, say, checking your user agent and denying access for FF/safari users?