Blog security

Some of us at Caroles were talking a bit about being "safe" on your blog, as was talked about on KSL:
http://www.ksl.com/?nid=148&sid=4699330
Something I did on my own was change a couple default setting for my blog. It won't keep wierd-os out completely, but makes it a little harder for them to find yours.
Click on the "My Account" at the top
Click on the "Settings" tab
Then scroll down a little. There's "Add your blog to our listings", set that at "NO". And below that is "Let search engines find your blog", set that at "NO" also.