Come on. We're supposed to doubt the merits of this entire article about Twitter's philosophy and general large-organization engineering practices because someone outside can't imagine how so many people fill their day? Because maybe a thing which we can't hope to gain an accurate perspective of indicates they're doing everything wrong?
This reminds me of the story of a walk from SF to LA illustrating why software estimates are always so wrong:
http://www.quora.com/Engineering-Management/Why-are-software...
Instead shouldn't we just evaluate the content on its own merits?