This whole thing started when one - ONE - person came to Digg offering to buy away it's top contributers. That was the guy running Netscape, it's not a new industry if one clown has the stupid idea that it will make money. Digg nearly unanimously made fun of him and it hasn't popped up again since. The details are "kind of vague" because it's kind of stupid.
Using common sense, we can see that this would in no way be feasible. How could you make $1000 a month profit out of simply acquiring links? Even if you could, all you'd have to do is set up a bot that scrapes popurls, digg, reddit, daily rotation, etc., and compares the links with the list from last hour's scrape, submitting the new links. We're talking twenty lines in Bash using wget, sed, and grep; I wrote one myself for my own use, and it filters out dupes as well. That's pretty much all you see the results of these days anyway; a story will pop up on Digg, and then two days later on Slashdot, and then it will run down the LXer feed for a couple days and then head over to Mad Penguin...
The craze for RSS and social bookmarking have produced an over-inflated information economy where the same story gets blabbed on every blog just like the same story shows up on all the TV news channels at once. Compounded by the link to a blog that links to a blog that links to a blog, etc. ad maximus infinitum, that links to the same damn story you read two weeks ago.
There's too many linkers out there and not enough original reporters. And let's face it, when the entire world becomes bloggers, the only way you're going to have originality is if everybody blogs only about what's going on from their own view out the window by their computer. And won't that be FUN?