are you able to tell if the amount being bet on satoshidice has declined since they closed their operations to americans?
The betting volume has increased since closing to US bettors.
He is using gorilla marketing tactics. Free media attention by blocking his site in the US.
I'm not sure. Swiss banks have also started refusing US citizens and I don't think this is guerrilla marketing nor does it add to the bottom line. They lose business but also take less legal risk. I think the same applies here.
Though I agree some US citizens will be motivated to gamble more with SatoshiDice now that it's forbidden, many more I think will go for the easy solution and just switch gambling website.
Ie: I think if US citizens were not refused, the growth would have been stronger.