While it's hard to find time to share things in a meaningful way, it's meaningless to do it otherwise.
O'Reilly Radar: The End of Social, 2011-Dec-5, by Mike Loukides
Automated sharing is giving Facebook a treasure-trove of data, regardless of whether anyone cares. And Facebook will certainly find ways to monetize that data. But the bigger question is whether, by making sharing the default, we are looking at the end of social networks altogether. If a song is shared on Facebook and nobody listens to it, does it make a sound?