For the most part, I think that Google's crackdown on pseudonyms and anonymity is actually a good thing. In most cases, anonymity online brings out the worst of us—just look at 4chan, littered with mobs of minions proliferating senseless hacking and child pornography[1]. You need but look at the news lately to see the damages of unchecked anonymity: "LulzSec this," "Anonymous that" and so on. Enforcing real names is…
You make it sound like there is no responsibility and accountability in pseudo-anonymous cooperation.
How about real names on license plates? X-Box live accounts?
Enforcing real names is _not_ always a good thing. They already have my IP and the police can demand my ISP for my personal data; not just a stalker, impersonator, or any fraud.
Enforcing real names on 4chan will solve nothing, and likely make matters worse (in your view): It would create a more vibrant Freenet or Darknet where people are a lot more anonymous and 4chan seems civil by comparison.