I'm all for the concept of anonymous comments, heraldo, but a blog owner is a different story.
And you're not Captain Buhne, just poking fun.
If you are going to talk shit about someone, YOU need to come clean about who YOU are.
I faced the same thing when I decided to start watchpaul. I knew that I would be saying harsh things, and it wouldn't be nice. Therefore I had to be upfront.
It's not that hard. Presumably you have the courage to do it.
(You can discuss it with heraldo here)