I keep some names secret because I'm not sure if they'd want their names out there or not. Costas...just because I'm lazy to write Costas all the time. He knows I'm posting about him on LJ. ;)

I know some parents do it to protect their children from predators, and I guess that makes sense, if someone would want to prey on your child because of your blog, then it would be easier to lure it if the predator knows its name.