The short answer is no.
The author of the article takes MySpace to task for their pointless new safety measures. He also suggests that instead of giving your child’s e-mail address to MySpace to keep them off of it he suggests giving your IP address instead.
I think that’s a great suggestion but it’s just as flawed as the e-mail plan.
There are sites and software out there called anonymizers which easily mask your ip address making any ip block useless.
Whatever block MySpace can think of kids and predators have already thought of a way around it.
Actual parental involvement is the best line of defense in my book.