Trinity, Caminus posted this note on another thread here, might answer some of your questions. I hope he doesn't mind my moving it from there to here:
Caminus said:
The Devil isn't going to get anywhere with full frontal attacks, traditional Catholics are on the look out already. He will and has other more devious plans in play, for example, agitating the consciences of Catholics in order to goad them into making excessive or superfluous judgments, he will use their curiosity and pride while the are studying doctrine to slip in other erroneous ideas and then convince them they have found the 'secret key'. He will cause Catholics to irrationally suspect other Catholics and thus cut off all charity. Thus people now use the pagan language of "controlled opposition" in order to describe other Catholics who err in good faith or who do not even err at all, their only crime being they disagree with our opinion. He will play on inherent self-love and convince Catholics to subtely feel superior to others because they have found traditional Roman Catholicism thus lulling them into spiritual complacancy while they still suffer from grevious defects that are left untouched, whithering away the growth of charity.