I noticed a difference between publication URL vs. author profile name.
What happened
Substack lets you set a publication name (what shows up as the title) and a publication URL (the actual web address), and they don’t have to match. In this case:
-
Author/profile name: Dave Nelson (
davenelsonmusic) -
Publication URL:
nellipalooza.substack.com
So the RSS feed is tied to the publication URL, not the author handle. That’s why https://nellipalooza.substack.com/feed works and https://davenelsonmusic.substack.com/feed doesn’t.