Nice post jsm. It'd be a shame for the site to die, cos it's pretty much the best way of finding underground music imo.
In terms of RDJ's soundcloud, I guess it just depends on if he's ever going to upload more tracks. I doubt he's going to re-upload the ~200 tracks that used to be up, but seeing as we got a new track a couple of weeks ago I wouldn't be surprised if he just drip feeds us with a new upload every couple of months. If he does that then I really hope he finds a more permanent place to upload them, it'd be a shame to lose access to them.