Comment on Are the new RSS feeds misbehaving?
auster@thebrainbin.org@thebrainbin.org 2 weeks ago Appears to have been the solution. Tested a link yesterday night, after BentiGorlich's comment on the spike graph, and the direct links are back to being login-protected, though now feeds seem to be working.
...or maybe the login requirement was reactivated for everything and what I saw were the ripples of the small window it stayed active, given my test just now.