recently I've added in some D0Ns (Sng's) on
ipoker sites when I'm winding down an MTT session and don't have many tables left. As others have mentioned, lots of really loose/bad players in those games... but there's also some players with 10's of thousands of games played. (I've seen some with more than 50,000 games played) & they are playing GOOD. I can't imagine how they've managed to get in that kind of volume on that network but obviously it's possible.
The rake is incredibly high in those D0N Sng's... but there's a large number of fish in them too!