[cyfex]

It appears you can still make it return an Atom feed if you pass the 'Accept: application/xml' header.

This is not to say that what they did was right.

[itbroke]

Good find. But while that may serve as a workaround for scripts, it still doesn’t work for RSS Readers (the ones I tried), which makes sense because feeds can be JSON¹ too but these don‘t conform to that format either.

¹ https://www.jsonfeed.org