There have been posts here much more condeming than mine of the opt-in. Never posted it was not worth a shot and, in fact, noted it was a good thing but still was criticized. Sadly, when folks go off-topic personally, it's an indication of fear driving their greed. It is curious that even simple questions bring out some need to shield and defend the opt-in and chastise the messenger. The opt-in should easily stand on its own merit and not need to be defended.