I think no one is answering because no one cares enough to answer. Are Gmail reading my emails? Maybe. Probably not. Do I care? No, cause I don't use it for anything really important. Bottom line is, if you have any doubts, just don't use it. I for one though, would not go trusting anyone just cause they right a few things on a webiste. Those links you posted (at least the first one) are full of heresay.