I've never been asked about opting out, the problem is that most of the casinos I cashed in don't get the results out. A lot of my tournament cashes before I stopped playing live in 2009 are missing, including a couple of 5-digit binks. HendonMob even has my picture wrong! :-[
After I started playing live again in May, not a single one of my cashes at Casino Rama ($6K), Brantford, Georgian Downs and Western Fair has been reported. Meh.
mikelbyl;360397 wroteThe real challenge is not to get the results out, but to manage the opt-out for players.