I have a theory about this season, so I'm gonna put it here, even if it's not about Clara:
The Doctor going around with a low profile is going to make people want to know who he is (as the Daleks did), meaning that he ends up causing the Question to be asked... resulting in his persecution by the Silence and thus his need to lie low in the first place.
The Doctor going around with a low profile is going to make people want to know who he is (as the Daleks did), meaning that he ends up causing the Question to be asked... resulting in his persecution by the Silence and thus his need to lie low in the first place.