Do you seriously think that people weren't already aware that this is where every leak comes from ?
It's all about risk mitigation. There's inherent risk in posting any sort of leaks that you'll get shut down by NPD's enforcement agency.
If they're mostly contained here for a little while, then there's still a risk but it's lower simply because this is a lower-traffic forum.
But dangling complete posts literally right in front of NPD's nose just bumps it up into the highest-risk category. Nothing may happen, but now there's the greatest potential of something bad happening to me.
I'm not an idiot to think that leaks weren't going to spread, but I wanted there at least to be some sort of lag period instead of a direct copy-and-paste dump right away.