Unfortunately, I suspect that FB makes a whole lot more money offering a free service than they ever would with a subscription model. And though I very much lik

Unfortunately, I suspect that FB makes a whole lot more money offering a free service than they ever would with a subscription model. And though I very much like the idea: if you look at email, you see how few people are actually prepared to pay for an online service... (Email has the added advantage of being a public standard that anyone can implement - free or charged. Social media has no such universally accepted standard.)