We shouldn't forget that there are millions of blogs out there already with many more being created every day. The question of whether you use your real name needs to be considered in the terms of a global scale.
On my blog I get readers from around the world and some from my own country. I'm happy to use my real details as it is who I am and therefore what I write about must reflect that.
Unless you are extremely unlucky the chances of you being targetted by anyone would I believe be very small. You will first of all take a long time to attract a reasonably sized audience, so it will probably be a long time into the future before you upset someone so violently that they want to waste their time bad mouthing you or worse tracking you down.
Life's just too short
