Gotta admit that this is pretty lame of them.
To be honest any high-volume news portal / ugc site that doesn't support RSS is quite purposeless.
For those look for Dribbble feed replacements, check out https://dribbble.hittter.com
This, to me, is the worst thing they could come up with. Don't know the reason behind it, don't know what their problem was with that feed.. But I do know there's no more dribbble for me. I hardly ever go straight to their site and check the popular section. Normally I would've received about 300 pieces a day, at least 30 of which made me click and got me on the actual website. That's done now.
So things like muzli won't work anymore?