1) The constant refrain from many in the tech community of "I would pay to use service X and therefore having a paywall is a legitimate business model" frustrates me to no end, because it's such a "moderately wealthy tech person from the West" point of view held by those with the disposable income to spend on these services. If Facebook's mission is to "make the world more open and connected," it would be impossible to accomplish that if you're charging some rando in Uganda who is accessing Facebook on a 'feature' phone, or worse, the equivalent of their monthly or yearly income. Further, if you look at the political discourse in the middle east that is occurring predominantly on FB and Twitter, it would be ass-backward (and truly "evil") to charge these people to have that discourse.
2) Indeed the point you make about non-techie friends is relevant but you miss the point -- most people don't care about these issues if the result is an amazingly useful tool. So what if ads are correlated with usage: god-forbid you see something interesting that you may want to buy or is relevant to your tastes. And honestly it's no more true that FB 'gives' your data away any more than Google 'gives' away your Gmail/Gdrive/Picassa/etc. data.
2) Indeed the point you make about non-techie friends is relevant but you miss the point -- most people don't care about these issues if the result is an amazingly useful tool. So what if ads are correlated with usage: god-forbid you see something interesting that you may want to buy or is relevant to your tastes. And honestly it's no more true that FB 'gives' your data away any more than Google 'gives' away your Gmail/Gdrive/Picassa/etc. data.