Me thinks they get paid in commissions for flashcart selling.
Why else publish information thats already readily available and easy to scout with Google?

Even if people were in good nature and didn't pirate, nin10doh or any other publisher would be against running backups.

I was waiting for the sentence that says "Skip this tedious step that will take sometimes hours and download your dumped game here: "  Because thats what we're all thinking. :
I sure as hell would never dump my own game if it easier/quicker to download one in seconds instead.