One of the biggest dilemmas in this industry I keep thinking about is: if I'm the creator of a platform for an unprecedented, and potentially addictive, online social experience, should I care if people overuse my product and try to educate them somehow, or should I keep coming up with incentives to make them use it more and more?

In other words, does the user own the entire responsibility for the amount of time he spends on social networks? Or it would be a good idea (on the moral side of the issue, anyway) if the makers provided a way for the consumers to limit their usage?