Just pushed a fix that should make RSS feeds work properly (you will have to resubscribe to the RSS feeds, if you did so a while ago). Thanks to squirrelInHell who made me aware of the deeper problems with our RSS feed (that my RSS reader seemed to mostly automatically patch, but which other people ran into).
Go to the frontpage, hover-over the different filters (curated, frontpage, community, etc) and click on the rss button in the hover-over, to get the respective rss url.