Another worry--this Sharing feature trains every new poster to share by starting a new thread, rather than looking for an existing thread that he could contribute to. Isnt the "Corporate Logos" thread much more interesting than just scattering a bunch of new posts all through the Community?

And this approach emphasizes posting over reading. -- What? ME? Read someone elses stuff? No way dude, it is way more ego boosting to just post stuff to get my cool name out there.