The page seems to be tied into selling some sort of e-magazine, "power news" or something like that, but the content seems to be legitimate, even if possibly wrong.
http://www.mototuneusa.com/break_in_secrets.htm

This "full throttle" break in method goes against everything I've been taught when it comes to the first 1000 miles of a car's life. I remember interstate drives at 55 and eggshell gas pedal techniques when I first drove my dad's 02 accord. Now this guy says to give it some gas and let it rip to promote engine life and even ring wear?

What do you guys think?