A study on Facebook done recently shows that people care a lot more than one thinks about privacy
Perhaps the fact that it is difficult, that there is no simple solution, is what stops them from being
able to fulfill that desire. Perhaps there is a lot of marketing to spread the idea that they don't. I wonder in whose
interest that would be?
Now another thought. The problem with current social networks is that they are too small. On any centralised network the network operator is always listening. So the number of possible groups that could be made on a site with N users is the size of the Powerset of N. Which is a huge number. Just as a matter of interest here are some figures:
P(100) = 2^100 = 1267650600228229401496703205376
P(250) = 2^250 = 18092513943330655534932966407607485602073435104006338131165247501236\
P(1000) = 2^1000 = 10715086071862673209484250490600018105614048117055336074437503883703\
Now take a site with N users, remove the operator you have P(N)/2 number of groups that connot be made.
Next think of the possible groups that could be made if the whole of humanity could be linked together... The current social networks are just peanuts compared to what is possible....