Title sums it up. I'm setting up a dedicated server as opposed to using shared hosting, and am wondering if it's more secure to change the MySQL root username. I've gone for a long and complex password, and I've done my best to secure the server itself using key based SSH and disabling root logins etc. But I'm paranoid since it's totally my responsibility now and I figure that if root is renamed, it makes it harder for a hacker to try and brute force if they don't know the username. Disabling remote access is probably helpful as well, if an option.
I saw this question: https://serverfault.com/questions/148801/when-securing-mysql-is-it-better-to-create-a-user-with-root-like-priviliges-and and the accepted answer was to rename root, but there wasn't much discussion.
What do you do and why?