Blog writers protected from defamatory comments

In the recent ruling Kaschke vs Gray (http://www.bailii.org/ew/cases/EWHC/QB/2010/690.html 29 March 2010) it seems that there is now a precedent set protecting blog writers from defamatory comments left on their blog posts. 
When Google sites finally enable comments for public users, this may come in useful for me. For many personal blog writers who do not moderate their post comments this level of protection is essential. Who has the time to monitor and moderate comments on personal websites?