Because when you click the headline on Digg, it sends you straight to that thread.
They read some of the thread, they look through the Digg comments, perhaps make a comment, and they close that browser tab and move on to the next Digg article on the frontpage.
That's what I do, and that's what diggers do. Of course the site gets seen by visitors, so if they want to know videogame sales info later, hopefully they'll remember this site, and perhaps join.


LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )







