At the risk of getting ripped apart here, I'm going to 'sort of' stick up for Kerrang and the whole 'nu' thang...
Kerrang is crap and has been for years - we all know that and so we don't buy it. Slipknot aren't brilliant either so we don't buy their albums. Simple. It's called freedom.
However...
Imagine yourself as a 12 / 13 year old raised on Blue and Girls Aloud. Suddenly, one day you hear and see Slipknot. That is going to be the most awesome and terrifying and rebellious thing in your world ever.
From that day, you buy Kerrang, you watch the Osbournes, from there you hear of Sabbath,
from Sabbath descends pretty much everything in the metal spectrum. And as we all know, once you're 'in' you're in for life, and the desire to explore new bands and styles consumes you. Kids worship Slipknot, Slipknot worship Carcass. Work it out!
I got into metal aged 11 via Maiden's 'Run To The Hills' and from there found Priest, Rush, Motorhead, AC/DC and 22 years later I'm still discovering great new music. I caught the tail end of Kiss in make-up, and to me then Gene was pure evil- much like Slipknot are to kids now. Don't knock 'em for it.
We all start somewhere. We all go down in the pit. We all wear dodgy clothes in imitation of our fave bands. And then, we grow with it.
Bang that head that doesn't bang someone once said. And if Slipknot can get one teenage head banging that would have otherwise been listening to Westlife and walking round in identikit moron burberry, then more power to them.
Basically, it's metal innit?