Automated essay grading and Twitter followers

Let's see: College professors are starting to depend on computers to grade essays, and Twitter users are spending millions of dollars to get fake followers. Is this the best that AI can offer?

Less attention to teaching and fewer jobs for scholars? - Essay-Grading Software Offers Professors a Break nyti.ms/ZaKIof
— Kenneth D. Pimple (@Ethical_PICT) April 6, 2013

Can someone explain this to me? Pure vanity? - Fake Twitter Followers Become Multimillion-Dollar Business nyti.ms/12rV9aW
— Kenneth D. Pimple (@Ethical_PICT) April 7, 2013